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Chapter 1-Components of Food[expand title=”Read Moreâž”” swaptitle=”🠔Read Less”]

Section A: Multiple Choice Questions (1 mark each)

  1. What percentage of our body is composed of water?

    • a) 30-40%
    • b) 50-60%
    • c) 70-80%
    • d) 90-100%

  2. Which of the following is not a function of proteins in the body?

    • a) Repair and growth
    • b) Providing energy
    • c) Enzyme formation
    • d) Immune system support

  3. Which vitamin is water-soluble?

    • a) Vitamin A
    • b) Vitamin C
    • c) Vitamin D
    • d) Vitamin K

  4. What is the primary function of carbohydrates in the body?

    • a) Provide quick energy
    • b) Support immune system
    • c) Build muscles
    • d) Aid digestion

  5. Which of the following is a micronutrient?

    • a) Carbohydrates
    • b) Proteins
    • c) Vitamins
    • d) Fats

Section B: Fill in the Blanks (1 mark each)

  1. Fats are broken down into ____________ and ____________ during digestion.

  2. ____________ is the process by which green plants make their own food.

  3. Deficiency of ____________ causes beriberi.

  4. The main source of vitamin D is ____________.

Section C: True/False (1 mark each)

  1. True/False: Minerals are organic compounds.

  2. True/False: Carbohydrates are the body’s primary long-term energy storage.

Section D: Short Answer Questions (2 marks each)

  1. Explain the term “nutrients.”

  2. How does the body use energy stored in fats?

  3. List two functions of water in the human body.

Section E: Application-based Questions (3 marks each)

  1. Suggest a diet plan for a sports player emphasizing the importance of each food component.

  2. Investigate and explain how deficiency diseases can be prevented through a balanced diet.

Section F: Diagram-based Questions (4 marks)

  1. Draw a labeled diagram of a plant cell, indicating the organelles involved in food synthesis.

  2. Create a flowchart showing the journey of a nutrient from ingestion to absorption in the human body.

Section G: Long Answer/Essay Questions (5 marks each)

  1. Discuss the importance of a balanced diet in preventing lifestyle diseases.

  2. Explain the concept of calorie intake and its significance in diet planning.

    Section A: Multiple Choice Questions (1 mark each)

    1. What is the main function of vitamins in the body?
    • a) Provide energy
    • b) Build muscles
    • c) Regulate body processes
    • d) Support digestion
    1. Which of the following is a rich source of omega-3 fatty acids?
    • a) Olive oil
    • b) Fish
    • c) Nuts
    • d) Avocado
    1. Which nutrient is essential for the formation of red blood cells?
    • a) Iron
    • b) Calcium
    • c) Potassium
    • d) Sodium
    1. What is the primary role of minerals like calcium and phosphorus in the body?
    • a) Support nerve function
    • b) Build strong bones and teeth
    • c) Aid in digestion
    • d) Provide quick energy
    1. In the digestive system, where does the absorption of nutrients mostly occur?
    • a) Stomach
    • b) Small intestine
    • c) Large intestine
    • d) Esophagus

    Section B: Fill in the Blanks (1 mark each)

    1. ____________ is a water-soluble vitamin that acts as an antioxidant.

    2. The breakdown of carbohydrates begins in the ____________.

    3. ____________ is an example of a complex carbohydrate.

    4. ____________ is the process by which glucose is converted into energy in cells.

    Section C: True/False (1 mark each)

    1. True/False: A calorie is a unit of energy derived from proteins.

    2. True/False: Vitamins are classified as macronutrients.

    Section D: Short Answer Questions (2 marks each)

    1. Explain the term “essential amino acids.”

    2. How does the body store excess glucose?

    3. Mention two functions of fiber in the diet.

    Section E: Application-based Questions (3 marks each)

    1. Design a one-day meal plan for a pregnant woman, considering her nutritional needs.

    2. Research and discuss the impact of fast food on health, focusing on its nutritional aspects.

    Section F: Diagram-based Questions (4 marks)

    1. Draw a labeled diagram of the human teeth, indicating their types and functions.

    2. Create a diagram illustrating the process of photosynthesis in plants.

    Section G: Long Answer/Essay Questions (5 marks each)

    1. Discuss the concept of “empty calories” and its relevance to modern diets.

    2. Explain the role of the liver in the digestion and absorption of nutrients.

    These additional questions provide a more comprehensive set, covering various aspects of the “Components of Food” chapter.[/expand]

Chapter 2-Sorting Materials into Groups[expand title=”Read Moreâž”” swaptitle=”🠔Read Less”]

Multiple Choice Questions (MCQs):

  1. What is the primary purpose of sorting materials into groups? a. To create a mess b. For better organization and understanding c. To waste time d. None of the above

  2. Which of the following is a chemical property of a material? a. Color b. Shape c. Reactivity d. Size

  3. How can you classify objects based on their properties? a. By tasting them b. By observing and comparing their properties c. By guessing d. By closing your eyes

True/False Questions:

  1. True/False: Sorting materials into groups is essential for better organization.

  2. True/False: Color is not a property that can be used for sorting materials.

Fill in the Blanks:

  1. Objects made of the same material share similar __________.

  2. Sorting materials into groups helps in easy ___________.

Matching Questions:

  1. Match the following materials with their types:
    • Plastic a. Conducts electricity
    • Metal b. Flexible
    • Wood c. Burns in lamps
    • Cloth d. Transparent

Diagram-based Questions:

  1. Draw and label an object made of metal.

  2. Create a diagram to represent the process of sorting materials into groups.

Short Answer Questions:

  1. Why is it important to classify materials into groups?

  2. Name two properties you can use to sort objects in your house.

Application-Based Questions:

  1. Explain how sorting materials into groups is useful in daily life.

  2. Suggest a situation where sorting materials based on color is crucial.

Analytical Questions:

  1. Compare and contrast sorting materials based on shape and size.

  2. Predict the consequences of not sorting materials in a classroom.

Project-Based Questions:

  1. Design a project to demonstrate the importance of sorting materials into groups.

  2. Investigate and present three real-world examples where materials are sorted for different purposes.

Critical Thinking Questions:

  1. Why do you think certain materials are grouped based on their ability to conduct electricity?

  2. How might advancements in technology impact the way we sort materials in the future?

    Multiple Choice Questions (MCQs):

    1. What is the process of separating materials based on their properties called? a. Fusion b. Classification c. Synthesis d. Dissolution

    2. Which of the following is a physical property? a. Ability to rust b. Ability to burn c. Color d. Reactivity with acid

    3. Which material is commonly used for making flexible objects? a. Metal b. Wood c. Plastic d. Glass

    True/False Questions:

    1. True/False: Materials can be sorted based on their taste.

    2. True/False: Shape is not a relevant property for sorting materials.

    Fill in the Blanks:

    1. Objects with similar properties are grouped together to form a ____________.

    2. Sorting materials into groups helps in efficient ____________.

    Matching Questions:

    1. Match the property with the sorting criterion:
    • Conductivity a. Grouping based on hardness
    • Texture b. Grouping based on ability to let light pass through
    • Transparency c. Grouping based on ability to conduct electricity
    • Hardness d. Grouping based on feel

    Diagram-based Questions:

    1. Draw and label an object made of plastic.

    2. Create a flowchart showing the steps involved in sorting materials into groups.

    Short Answer Questions:

    1. Explain the difference between physical and chemical properties of materials.

    2. Provide an example of how sorting materials into groups can help in recycling.

    Application-Based Questions:

    1. Describe a scenario where sorting materials based on size is crucial.

    2. Propose an experiment to test the magnetic property of different materials.

    Analytical Questions:

    1. Analyze the environmental impact of not sorting materials before disposal.

    2. Evaluate the effectiveness of sorting materials in a school science laboratory.

    Project-Based Questions:

    1. Develop a project to showcase the importance of sorting materials in a community.

    2. Investigate and present examples of industries where materials are sorted for production purposes.

    Critical Thinking Questions:

    1. How might cultural differences influence the way materials are sorted in different parts of the world?

    2. Predict the challenges that might arise in a world without any system of sorting materials.

    Feel free to adapt these questions to suit the specific needs of your classroom and the CBSE curriculum.[/expand]

Chapter 3-Separation of Substances[expand title=”Read Moreâž”” swaptitle=”🠔Read Less”]

Multiple Choice Questions (MCQs):

  1. Which of the following is a mixture? a. Salt b. Water c. Saltwater d. Oxygen

  2. What is the primary difference between a mixture and a compound? a. Compounds have a fixed composition. b. Mixtures are always homogeneous. c. Mixtures have a fixed composition. d. Compounds are always heterogeneous.

  3. In the mixture of sand and water, what is the solvent? a. Sand b. Water c. Both d. Neither

True/False:

  1. True or False: Filtration is a method of separating substances based on their magnetic properties.

  2. True or False: A mixture can be separated into its components through a physical process.

Fill in the Blanks:

  1. _________ is a process of separating solid particles from a liquid using a filter.

  2. In magnetic separation, a ____________ is used to attract the magnetic components.

Match the Following:

  1. Match the separation method with its application:

    • Filtration
    • Evaporation
    • Magnetic separation

    a. Separating salt from seawater. b. Removing solid impurities from water. c. Separating iron filings from a mixture.

    Answers: i. Filtration ii. Evaporation iii. Magnetic separation

Short Answer Questions:

  1. Explain one real-life situation where you might use the process of evaporation to separate substances.

  2. Name three methods of separation and provide a brief description of each.

Long Answer/Essay Questions:

  1. Describe the process of filtration and give an example of when it is commonly used.

  2. Discuss the importance of separation of substances in various industries. Provide examples.

Application-based Questions:

  1. Your friend has a mixture of sand and salt. Explain to them how they can separate the components using suitable methods.

  2. Imagine you are in a chemistry laboratory. Describe an experiment you could conduct to demonstrate magnetic separation.

Assertion and Reasoning:

  1. Assertion: Filtration is a useful method for separating substances in a heterogeneous mixture. Reason: Filtration relies on the difference in solubility of components in a mixture.

    Multiple Choice Questions (MCQs):

    1. What method of separation is best suited for separating a mixture of alcohol and water? a. Filtration b. Evaporation c. Distillation d. Magnetic separation

    2. Which of the following is an example of a homogeneous mixture? a. Sand and water b. Air c. Oil and water d. Iron filings and sulfur

    3. In the process of magnetic separation, what property of the substances allows them to be separated? a. Density b. Color c. Solubility d. Magnetic susceptibility

    True/False:

    1. True or False: Distillation is a method of separation based on the differences in boiling points of components.

    2. True or False: The components of a mixture retain their original properties after separation.

    Fill in the Blanks:

    1. The process of evaporating a liquid to obtain its solid residue is known as ____________.

    2. Distillation is particularly effective in separating components with different ____________.

    Match the Following:

    1. Match the separation method with its application:

      • Filtration
      • Evaporation
      • Distillation

      a. Separating ink from water. b. Obtaining salt from sea water. c. Separating a mixture of alcohol and water.

      Answers: i. a ii. b iii. c

    Short Answer Questions:

    1. Explain why oil and water do not mix and suggest a method to separate them.

    2. Differentiate between distillation and evaporation as methods of separation.

    Long Answer/Essay Questions:

    1. Describe the process of distillation. How is it different from other methods of separation?

    2. Discuss the environmental impact of improper disposal of separated substances.

    Application-based Questions:

    1. Your school laboratory has a mixture of sand, salt, and iron filings. Propose a sequence of steps to separate these components.

    2. In what ways is the separation of substances relevant in the food industry? Provide examples.

    Assertion and Reasoning:

    1. Assertion: Filtration is not effective for separating soluble substances. Reason: Filtration relies on the size difference between particles.[/expand]

Chapter 4-Getting to Know Plants[expand title=”Read Moreâž”” swaptitle=”🠔Read Less”]

Section A: Multiple Choice Questions (1 mark each)

  1. What is the primary function of roots in a plant? a) Absorption of water
    b) Photosynthesis
    c) Storage of food
    d) Anchor the plant

  2. Which part of the plant anchors it to the soil and absorbs water and minerals? a) Leaves
    b) Stem
    c) Roots
    d) Flowers

  3. The process of making food by plants using sunlight is called: a) Respiration
    b) Transpiration
    c) Photosynthesis
    d) Digestion

  4. Which part of the plant is responsible for reproduction? a) Leaves
    b) Roots
    c) Flowers
    d) Stem

  5. What is the main purpose of the stem in a plant? a) Absorb water
    b) Support and transport
    c) Photosynthesis
    d) Store food

  6. The outermost covering of the stem is called: a) Cortex
    b) Epidermis
    c) Cambium
    d) Xylem

  7. What is the function of chlorophyll in leaves? a) Absorb water
    b) Absorb sunlight for photosynthesis
    c) Store food
    d) Anchor the plant

  8. Which of the following is a function of flowers in a plant? a) Absorption of water
    b) Reproduction
    c) Photosynthesis
    d) Storage of food

  9. The part of the plant that develops into a new plant is: a) Flower
    b) Fruit
    c) Seed
    d) Root

  10. What is the primary function of the root hairs in plants? a) Anchor the plant
    b) Absorb water and minerals
    c) Photosynthesis
    d) Store food

Section B: Short Answer Questions (2 marks each)

  1. Explain the function of roots in a plant.

  2. List any three functions of leaves in a plant.

  3. Why are flowers important for a plant?

  4. Differentiate between taproots and fibrous roots.

  5. How does the process of transpiration benefit a plant?

  6. Describe the structure of a typical leaf.

  7. Explain why photosynthesis is crucial for the survival of plants.

  8. What is the importance of seeds in the life cycle of a plant?

  9. How is a stem different from a root?

  10. Discuss the role of chlorophyll in photosynthesis.

Section C: Diagram-based Questions (3 marks each)

  1. Label the parts of a flower in the diagram below.

[Include a simple diagram of a flower and provide space for labeling.]

  1. Draw and label a plant, showing its roots, stem, leaves, flowers, fruits, and seeds.

[Provide space for the students to draw and label the parts.]

  1. Create a diagram illustrating the process of photosynthesis. Label the key components.

  2. Draw and label the cross-section of a stem, highlighting its different layers.

  3. Illustrate the life cycle of a flowering plant through a series of diagrams.

Section D: Long Answer Question (5 marks)

  1. Describe the process of photosynthesis in plants. Include the role of leaves and sunlight in your explanation.

  2. Explain the adaptations of plants in arid regions to conserve water.

  3. Discuss the importance of fruits in seed dispersal.

  4. Elaborate on the role of roots in providing stability to the plant.

  5. How do plants respond to stimuli? Provide examples.

Section E: Application-based Question (4 marks)

  1. Imagine you are a botanist exploring a new species of plant. What specific features would you look for to understand its classification and ecological role?

  2. Design an experiment to demonstrate the role of sunlight in the process of photosynthesis.

  3. Discuss the economic importance of plants in our daily lives.

  4. How can the knowledge of plant anatomy be useful in gardening practices?

  5. Propose a conservation strategy for protecting endangered plant species.

    Section A: Multiple Choice Questions (1 mark each)

    1. Which of the following is a function of the stem in a plant? a) Photosynthesis
      b) Absorption of water
      c) Support and transport
      d) Storage of food

    2. What is the main purpose of the xylem tissue in plants? a) Photosynthesis
      b) Transport of water and minerals
      c) Storage of food
      d) Protection

    3. The process of water movement from the roots to the leaves of a plant is called: a) Transpiration
      b) Respiration
      c) Photosynthesis
      d) Osmosis

    4. Which plant part is responsible for storing excess food? a) Leaves
      b) Roots
      c) Stem
      d) Fruits

    5. The swollen underground part of a stem that stores food is called: a) Bulb
      b) Tuber
      c) Rhizome
      d) Corm

    Section B: Short Answer Questions (2 marks each)

    1. Explain the significance of the phloem tissue in plants.

    2. Describe the role of the cambium layer in the growth of a stem.

    3. How do plants adapt to different environmental conditions?

    4. Discuss the importance of a well-developed root system for a plant.

    5. Explain the process of seed germination.

    6. Differentiate between dicotyledonous and monocotyledonous plants.

    7. How do tendrils in plants aid in their growth and support?

    8. Discuss the role of the epidermis in plant leaves.

    9. Explain why leaves change color in the autumn season.

    10. How does the structure of a root contribute to its function?

    Section C: Diagram-based Questions (3 marks each)

    1. Create a diagram showing the different layers of soil and their importance for plant growth.

    [Provide space for labeling.]

    1. Draw and label the internal structure of a dicot seed.

    [Include space for labeling the seed coat, embryo, and cotyledons.]

    1. Illustrate the process of transpiration in a diagram. Label the key components.

    2. Draw a diagram depicting the various types of inflorescence in plants.

    [Include examples like racemose and cymose inflorescence.]

    1. Create a diagram showing the process of pollination. Label the key parts involved.

    [Include space for labeling the stigma, style, anther, and filament.]

    Section D: Long Answer Question (5 marks)

    1. Explain the role of mycorrhizae in the absorption of nutrients by plants.

    2. Discuss the importance of a balanced soil pH for plant growth.

    3. Elaborate on the role of hormones in the growth and development of plants.

    4. Describe the structure and function of a typical flower.

    5. Explain the adaptations of plants in aquatic environments.

    Section E: Application-based Question (4 marks)

    1. Design an experiment to investigate the impact of light on the growth of plants.

    2. Discuss the role of plants in carbon sequestration and climate change mitigation.

    3. Propose measures to prevent soil erosion in agricultural fields.

    4. How can the knowledge of plant anatomy be applied in the field of medicine?

    5. Imagine you are a farmer. Explain how crop rotation can benefit the health of your crops.

    Feel free to use, modify, or adapt these questions as needed for your class[/expand]

Chapter 5- Body Movements[expand title=”Read Moreâž”” swaptitle=”🠔Read Less”]

I. Multiple Choice Questions (1 mark each)

  1. Which of the following is a voluntary movement? a) Breathing b) Blinking c) Running d) Shivering

  2. Involuntary muscles are also known as: a) Cardiac muscles b) Skeletal muscles c) Smooth muscles d) Elastic muscles

  3. The joint between the bones of the skull is an example of: a) Pivot joint b) Fixed joint c) Hinge joint d) Ball and socket joint

  4. Muscles that are attached to bones by tendons are called: a) Skeletal muscles b) Smooth muscles c) Cardiac muscles d) None of the above

  5. Which type of muscle is found in the walls of the stomach and intestine? a) Skeletal muscle b) Smooth muscle c) Cardiac muscle d) Elastic muscle

II. True or False (1 mark each)

  1. __________ Our backbone is made up of only bones.
  2. __________ Ligaments are flexible tissues that connect muscle to bone.
  3. __________ Synovial fluid is present in the joints to reduce friction.
  4. __________ Exercise is not necessary for the proper functioning of muscles.

III. Match the Following (1 mark each)

  1. Match the type of movement with its example.
    • Abduction a) Bending your knee
    • Adduction b) Spreading your fingers
    • Flexion c) Turning your head

IV. Short Answer Questions (2 marks each)

  1. Explain how the skeletal system and muscular system work together during body movements.
  2. Describe the structure and function of synovial joints.

V. Fill in the Blanks (1 mark each)

  1. The tough, elastic connective tissue found in joints is called __________.
  2. The basic structural and functional unit of a muscle is the __________.
  3. The type of joint that allows movement in all directions is called a __________ joint.

VI. Diagram-Based Questions (2 marks each)

  1. Label the parts of a synovial joint in the diagram. [Include a simple diagram of a synovial joint]

  2. Draw and label the three types of muscle tissues.

VII. Application-Based Questions (3 marks each)

  1. Discuss the importance of warming up before engaging in physical activities.
  2. Imagine you are a doctor. Explain to a patient the significance of maintaining healthy joints.

VIII. Long Answer/Essay Type Questions (5 marks each)

  1. “The muscular and skeletal systems are intricately connected in facilitating body movements.” Discuss with examples.
  2. Explain the role of exercise in maintaining healthy muscles and joints.

    IX. Multiple Choice Questions (1 mark each)

    1. What is the primary function of tendons? a) Connect muscles to bones b) Connect bones to bones c) Store energy in muscles d) Facilitate joint movement

    2. Which of the following is an example of a hinge joint? a) Shoulder joint b) Knee joint c) Hip joint d) Elbow joint

    3. Which muscle type is striated and under voluntary control? a) Skeletal muscle b) Smooth muscle c) Cardiac muscle d) Elastic muscle

    4. What is the purpose of synovial fluid in joints? a) To provide energy b) To reduce friction c) To transmit nerve impulses d) To store nutrients

    X. True or False (1 mark each)

    1. __________ Cartilage is a type of connective tissue that is more rigid than bone.
    2. __________ Muscles can only pull and not push.
    3. __________ The biceps and triceps muscles work together to move the forearm.

    XI. Match the Following (1 mark each)

    1. Match the type of muscle with its location.
      • Smooth muscle a) Heart
      • Skeletal muscle b) Walls of stomach
      • Cardiac muscle c) Attached to bones

    XII. Short Answer Questions (2 marks each)

    1. How do antagonistic muscles work together to produce movement?
    2. Explain the role of the vertebral column in protecting the spinal cord.

    XIII. Fill in the Blanks (1 mark each)

    1. The contractile unit of a muscle fiber is called __________.
    2. Joints that allow movement in only one plane are called __________ joints.

    XIV. Diagram-Based Questions (2 marks each)

    1. Draw and label the structure of a typical long bone.
    2. Illustrate the different types of synovial joints with examples.

    XV. Application-Based Questions (3 marks each)

    1. Discuss the impact of a sedentary lifestyle on the muscular and skeletal systems.
    2. Propose a set of exercises suitable for improving flexibility in the joints.

    XVI. Long Answer/Essay Type Questions (5 marks each)

    1. Compare and contrast voluntary and involuntary muscle movements.
    2. Explain how the muscular system contributes to maintaining body posture.

    Note: Feel free to adjust the number of questions based on the time available for the assessment. These questions cover a wide range of topics within the “Body Movements” chapter and should provide a comprehensive assessment for your students.[/expand]

Chapter 6- The Living Organisms and their Surrounding[expand title=”Read Moreâž”” swaptitle=”🠔Read Less”]

Section A: Multiple Choice Questions (1 mark each)

  1. What is the primary purpose of adaptation in living organisms? a. Reproduction b. Survival c. Communication d. Growth

  2. Which of the following is an example of a structural adaptation? a. Migration b. Hibernation c. Mimicry d. Sharp claws in a predator

  3. In which habitat would you find the maximum biodiversity? a. Desert b. Rainforest c. Grassland d. Tundra

  4. What is mimicry? a. A way of reproducing b. A form of camouflage c. A type of migration d. A way of hunting

  5. How do plants in a rainforest adapt to the low light conditions on the forest floor? a. They grow tall quickly. b. They have large leaves. c. They shed their leaves. d. They move towards the sunlight.

  6. Which of the following is a behavioral adaptation? a. The color of a chameleon b. A tortoise’s shell c. A lion’s sharp teeth d. A bat’s nocturnal habits

  7. Define the term ‘ecosystem.’

  8. Why is the adaptation of webbed feet beneficial for aquatic birds?

  9. Explain why a cactus is well-adapted to survive in a desert.

  10. What is the role of camouflage in the survival of animals?

Section B: True/False Questions (1 mark each)

  1. True/False: Adaptations are traits that organisms acquire during their lifetime.

  2. True/False: A polar bear’s white fur is an example of camouflage.

  3. True/False: All living organisms can adapt to any environment.

  4. True/False: Migration is a permanent movement of organisms from one region to another.

  5. True/False: Habitats do not play a significant role in the survival of living organisms.

Section C: Match the Following (2 marks each)

  1. Match the adaptation with the correct example:

    • Adaptation: A. Migration
    • Adaptation: B. Hibernation
    • Adaptation: C. Camouflage

    Examples:

    1. Birds flying south for the winter
    2. Bears sleeping through the winter
    3. Chameleons changing color to blend in with their surroundings

  2. Match the habitat with the correct description:

    • Habitat: A. Desert
    • Habitat: B. Coral Reef
    • Habitat: C. Arctic Tundra

    Descriptions:

    1. Extremely cold, with permafrost
    2. Hot and dry, with limited vegetation
    3. Diverse marine ecosystem with colorful organisms

Section D: Short Answer Questions (3 marks each)

  1. Describe three adaptations of a fish that help it survive in an aquatic habitat.

  2. Explain the difference between a habitat and a niche.

  3. How do animals in the Arctic tundra adapt to the extreme cold?

  4. Discuss the concept of co-adaptation with an example.

  5. Describe three ways in which human activities can impact the habitats of living organisms.

Section E: Application-based Questions (5 marks each)

  1. You are a wildlife biologist studying a new species of reptile. Outline the steps you would take to determine its habitat and adaptations.

  2. Choose a plant and explain how its structural adaptations help it thrive in its specific habitat.

  3. Design a model of an artificial habitat for an endangered species. Explain how your design incorporates the essential elements needed for the species’ survival.

Section F: Long Answer Question (5 marks)

  1. Discuss the importance of biodiversity in maintaining a healthy ecosystem. Provide examples to support your answer.

  2. Elaborate on the concept of mutualism in the context of living organisms and their surroundings.

  3. Explain how the destruction of natural habitats contributes to the loss of biodiversity. Suggest measures to prevent habitat destruction.

    Section A: Multiple Choice Questions (1 mark each)

    1. What is the purpose of a nocturnal adaptation in animals? a. To attract mates b. To avoid predators c. To find food d. To regulate body temperature

    2. Which of the following is an example of a plant adaptation in a rainforest? a. Small leaves b. Thorny stems c. Large surface area of leaves d. Water storage organs

    3. What role do decomposers play in an ecosystem? a. They provide food for predators. b. They break down dead organisms and waste. c. They compete with other organisms for resources. d. They help in pollination.

    4. How do birds use their beaks as an adaptation? a. For camouflage b. For communication c. For feeding and survival d. For attracting mates

    5. What is the primary purpose of a hump on the back of a camel? a. To store water b. For balance while running c. To attract a mate d. To protect against predators

    6. True/False: Mimicry is a defense mechanism that helps an organism hide by blending into its surroundings.

    7. True/False: Behavioral adaptations involve physical characteristics that help an organism survive.

    8. Match the following adaptations with their respective environments:

      • Adaptation: A. Broad leaves
      • Adaptation: B. Thick fur
      • Adaptation: C. Swinging tail

      Environments:

      1. Rainforest
      2. Arctic Tundra
      3. Grassland

    9. Why is migration considered an important adaptation for certain species of birds?

    10. Explain why a polar bear would struggle to survive in a desert habitat.

    Section B: True/False Questions (1 mark each)

    1. True/False: Adaptations are only physical changes in organisms.

    2. True/False: A habitat can exist without living organisms.

    3. True/False: Desert plants often have shallow roots to quickly absorb water during rain.

    4. True/False: All organisms in an ecosystem have the same niche.

    5. True/False: Adaptations are always inherited and not acquired during an organism’s lifetime.

    Section C: Match the Following (2 marks each)

    1. Match the adaptation with the correct example:

      • Adaptation: A. Camouflage
      • Adaptation: B. Migration
      • Adaptation: C. Symbiosis

      Examples:

      1. Butterflies resembling toxic species
      2. Wildebeests migrating in search of food
      3. Bees pollinating flowers for nectar

    2. Match the habitat with the correct description:

      • Habitat: A. Coral Reef
      • Habitat: B. Desert
      • Habitat: C. Grassland

      Descriptions:

      1. Hot and dry with sparse vegetation
      2. Rich in marine life with colorful corals
      3. Dominated by grasses and scattered trees

    Section D: Short Answer Questions (3 marks each)

    1. Explain how a chameleon’s ability to change color is an adaptive advantage.

    2. Discuss the impact of deforestation on the habitat of forest-dwelling animals.

    3. How do plants in a freshwater habitat adapt to the flow of water?

    4. Describe how animals in the polar region have adapted to the long, dark winter months.

    5. Differentiate between structural and behavioral adaptations, providing examples for each.

    Section E: Application-based Questions (5 marks each)

    1. Imagine you are a conservationist working to preserve a specific habitat. Outline a plan that includes both short-term and long-term strategies.

    2. Choose a mutualistic relationship between two organisms and explain how it benefits both partners.

    3. Design an experiment to test the hypothesis that a plant’s leaf size is an adaptation to its environment.

    4. Investigate and present a case study on a species that has faced endangerment due to habitat destruction. Include measures taken for its conservation.

    Section F: Long Answer Question (5 marks)

    1. Elaborate on the concept of a food chain and explain how disruptions in a food chain can affect an ecosystem.

    2. Discuss the significance of wetlands as habitats and explain the adaptations of organisms found in these ecosystems.

    3. Explain how human activities, such as pollution and climate change, can impact the adaptation of living organisms in different habitats.

    These additional questions should provide further depth and variety to the set, covering a wide range of topics related to the chapter. Feel free to use or modify them based on your class’s requirements.[/expand]

 Chapter 7- Motion and Measurement of Distances[expand title=”Read Moreâž”” swaptitle=”🠔Read Less”]

Section A: Multiple Choice Questions (1 mark each)

  1. What is the fundamental SI unit of length? a. Kilogram (kg) b. Meter (m) c. Second (s) d. Newton (N)

  2. Which of the following is a scalar quantity? a. Distance b. Velocity c. Force d. Acceleration

  3. What is the formula for average speed? a. Speed = Distance/Time b. Speed = Time/Distance c. Speed = Distance + Time d. Speed = Time – Distance

  4. If an object is moving at a constant speed, what can we say about its acceleration? a. Acceleration is positive. b. Acceleration is zero. c. Acceleration is negative. d. Acceleration is infinite.

  5. Which of the following is an example of non-uniform motion? a. A car moving with constant speed. b. A bicycle slowing down. c. A train moving on a straight track. d. A person walking at a constant pace.

  6. If the speed of an object is decreasing, what can be said about its acceleration? a. Acceleration is positive. b. Acceleration is zero. c. Acceleration is negative. d. Acceleration is constant.

Section B: True/False Questions (2 marks each)

  1. True or False: Distance is a vector quantity.

  2. True or False: Speed is always positive.

  3. True or False: Circular motion involves a change in speed but not in direction.

  4. True or False: The SI unit of speed is meters per second (m/s).

  5. True or False: Measuring tape is more suitable than a ruler for measuring the length of a curved object.

Section C: Short Answer Questions (3 marks each)

  1. Explain the concept of speed and how it is different from velocity.

  2. Calculate the speed of an object if it covers a distance of 240 meters in 30 seconds.

  3. Differentiate between distance and displacement.

  4. Describe a real-life scenario where uniform motion is observed.

  5. Why is it essential to specify both magnitude and direction to describe velocity?

Section D: Application-Based Questions (4 marks each)

  1. Imagine you are on a train moving at a constant speed. Explain what you observe regarding motion inside the train.

  2. Analyze the motion of a pendulum and explain whether it is uniform or non-uniform.

  3. Design an experiment to measure the speed of a toy car on a straight track.

  4. Consider a scenario where an object is moving in a circular path. Discuss the forces acting on the object.

Section E: Long Answer/Essay Question (5 marks)

  1. Discuss the significance of accurate measurements in scientific experiments. Provide examples from everyday life.

  2. Explain the concept of acceleration and how it is related to motion.

  3. Discuss the limitations of using a ruler for measuring the length of an irregularly shaped object.

  4. Compare and contrast uniform and non-uniform motion, providing real-world examples for each.

    Section A: Multiple Choice Questions (1 mark each)

    1. What does the slope of a distance-time graph represent? a. Speed b. Acceleration c. Distance d. Time

    2. Which of the following is a unit of speed? a. m^2/s b. m/s^2 c. m/s d. s/m

    3. An object moves with a constant speed. What can you say about its velocity? a. It is constant. b. It is changing. c. It is zero. d. It is negative.

    4. Which of the following is a non-contact method for measuring distance? a. Ruler b. Vernier Caliper c. Stopwatch d. Ultrasonic Sensor

    5. If an object moves with a speed of 20 m/s for 4 seconds, what is its total distance covered? a. 5 m b. 40 m c. 80 m d. 160 m

    Section B: True/False Questions (2 marks each)

    1. True or False: The speed of an object in uniform motion can change.

    2. True or False: Acceleration is always in the direction of motion.

    3. True or False: Distance and displacement are always equal.

    4. True or False: The speed of light is an example of uniform motion.

    5. True or False: Measuring tape is suitable for measuring the length of both straight and curved objects.

    Section C: Short Answer Questions (3 marks each)

    1. Describe the three types of motion with examples.

    2. Explain how to calculate acceleration using the formula a = (v-u)/t.

    3. Why is it important to use a stopwatch when measuring time in certain experiments?

    4. Discuss the role of friction in motion, providing examples.

    5. Differentiate between instantaneous speed and average speed.

    Section D: Application-Based Questions (4 marks each)

    1. Suppose you are in a car moving on a curvy mountain road. Explain how the speed and velocity of the car change.

    2. Design an experiment to measure the speed of sound in air.

    3. A ball is thrown vertically upward and then falls back to the ground. Analyze its motion, indicating the phases of acceleration and deceleration.

    4. Discuss the factors that affect the accuracy of measuring distance using a ruler.

    Section E: Long Answer/Essay Question (5 marks)

    1. Elaborate on the concept of circular motion. Provide real-world examples and explain the forces involved.

    2. Discuss the role of measurement in scientific inquiry. How does the precision of instruments impact experimental outcomes?

    3. A student travels 3 km north, then turns and travels 4 km south. Calculate the total distance traveled and the displacement.

    4. Explain the concept of relative motion with suitable examples.These questions should provide a comprehensive assessment of students’ understanding of the chapter “Motion and Measurement of Distances.”[/expand]

Chapter 8- Light, Shadows and Reflections[expand title=”Read Moreâž”” swaptitle=”🠔Read Less”]

I. Multiple Choice Questions (1 mark each):

  1. What is the main source of light on Earth? a) Moon b) Sun c) Stars d) Fireflies

  2. Which of the following is a transparent material? a) Wood b) Glass c) Metal d) Cardboard

  3. What happens when light falls on a mirror? a) It gets absorbed b) It passes through c) It reflects d) It refracts

  4. The speed of light is maximum in which of the following? a) Air b) Water c) Glass d) Vacuum

  5. Which of the following is a natural source of light? a) Bulb b) Candle c) Moon d) Television

  6. What type of mirror is a rearview mirror in a car? a) Convex b) Concave c) Plane d) Spherical

  7. When light passes from air to water, it bends. This phenomenon is known as: a) Reflection b) Refraction c) Dispersion d) Diffraction

  8. A shadow is usually: a) Smaller than the object b) Larger than the object c) The same size as the object d) Colorful

  9. Which type of surfaces are good reflectors of light? a) Rough b) Smooth c) Transparent d) Translucent

  10. The image formed in a pinhole camera is: a) Real and inverted b) Virtual and upright c) Real and upright d) Virtual and inverted

II. Fill in the Blanks (1 mark each):

  1. The ________ of light refers to the change in direction when it passes from one medium to another.

  2. A ________ is formed on the side of the object facing away from the light source.

  3. An object that does not allow any light to pass through it is called ________.

  4. The bending of light as it passes through a prism is an example of ________.

III. True or False (1 mark each):

  1. Shadows are always black.

    • True / False

  2. A magnifying glass is an example of a concave lens.

    • True / False

  3. Light travels faster in air than in water.

    • True / False

  4. The image formed in a convex mirror is always virtual.

    • True / False

IV. Match the Following (2 marks each):

  1. Match the following:
    • Convex Lens i. Enlarged and virtual
    • Concave Mirror ii. Diminished and real
    • Plane Mirror iii. Upright and virtual

V. Short Answer Questions (2 marks each):

  1. Explain the term ‘luminous object’ with an example.

  2. Differentiate between regular and diffuse reflection.

  3. Why does the sky appear blue during the day?

  4. What is the difference between a real image and a virtual image?

VI. Diagram-Based Questions (3 marks each):

  1. Draw a diagram showing the formation of a shadow. Label the light source, object, and shadow.

  2. Illustrate the difference between a concave and convex lens.

  3. Draw a diagram to explain how a rainbow is formed.

VII. Practical Application (3 marks):

  1. Describe a real-life situation where the principles of reflection of light are used, and explain how they are applied.

  2. Explain how the concept of shadows is used in determining the time of the day using a sundial.

VIII. Long Answer Questions (5 marks each):

  1. Discuss the importance of reflection of light in our daily lives.

  2. Explain the working of a periscope and its applications.

  3. Elaborate on the formation of shadows during different times of the day.

  4. Describe the working principle of a camera and how an image is formed.

    IX. Application-Based Questions (3 marks each):

    1. Imagine you are in a dark room with a single candle. Describe the changes in the shadow’s size and position as you move a screen closer to the candle.

    2. How are shadows useful in everyday life? Provide at least two examples.

    3. Discuss the safety measures taken by drivers at night based on the principles of reflection.

    X. Conceptual Questions (4 marks each):

    1. Explain how the angle of incidence is related to the angle of reflection.

    2. Discuss the concept of dispersion of light. Provide an example of a natural phenomenon that involves dispersion.

    3. Differentiate between regular and irregular reflection. Give examples of each.

    4. Explain why a pencil appears bent when partially immersed in water.

    XI. Practical Experiment Questions (5 marks each):

    1. Outline an experiment to demonstrate the laws of reflection using a plane mirror. Include the materials required and the procedure.

    2. Describe an experiment to verify the laws of refraction using a glass slab. Include the necessary steps and observations.

    3. Suggest an activity to show the formation of shadows at different times of the day. Explain how this activity helps in understanding the apparent movement of the Sun.

    XII. Case Study (6 marks):

    1. Research and present a case study on the use of concave and convex mirrors in different industries. Highlight their applications and advantages.

    XIII. Group Activity (8 marks):

    1. Divide the class into groups and assign each group a specific phenomenon related to light, shadows, or reflections (e.g., mirages, eclipses, or the functioning of a kaleidoscope). Each group should prepare a short presentation to explain the phenomenon to the class.

    XIV. Crossword Puzzle (10 marks):

    Create a crossword puzzle related to the chapter, including terms like reflection, refraction, transparent, opaque, convex, concave, etc.

    These questions provide a mix of difficulty levels and formats to cater to different learning styles. Feel free to adapt them based on the specific needs and pace of your class.[/expand]

Chapter 9- Electricity and Circuits[expand title=”Read Moreâž”” swaptitle=”🠔Read Less”]

Section A: Multiple Choice Questions

  1. What is the unit of electric current?

    a) Joule
    b) Ampere
    c) Ohm
    d) Watt

  2. Which material is commonly used as an insulator in electric wires?

    a) Copper
    b) Aluminum
    c) Rubber
    d) Silver

  3. What happens to the resistance in a wire if its length is doubled?

    a) It doubles
    b) It becomes half
    c) It remains the same
    d) It becomes four times

  4. In a parallel circuit, if one bulb goes out, what happens to the others?

    a) They go out too
    b) They get brighter
    c) They remain unaffected
    d) They become dimmer

Section B: Fill in the Blanks

  1. Electric ________ is the force that drives the flow of electric current.

  2. A device used to measure electric current is called a ________.

  3. The ________ of a material determines how easily it allows the flow of electric current.

  4. The total resistance in a parallel circuit is ________ than the resistance of any individual branch.

Section C: True/False

  1. In a series circuit, the voltage across each component is the same. (True/False)

  2. Rubber is a good conductor of electricity. (True/False)

Section D: Short Answer Questions

  1. Explain the concept of electric resistance.

  2. Differentiate between an open circuit and a closed circuit.

Section E: Long Answer Questions

  1. Describe the construction and working of a simple electric bell.

  2. Elaborate on the factors affecting the resistance of a conductor.

Section F: Practical Application

  1. Design an experiment to demonstrate the effect of changing the length of a wire on its resistance.

    Section A: Multiple Choice Questions

    1. What is the purpose of a fuse in an electric circuit?

    a) To increase resistance
    b) To regulate voltage
    c) To prevent overloading
    d) To enhance conductivity

    1. Which of the following materials is a good conductor at high temperatures but not at low temperatures?

    a) Copper
    b) Aluminum
    c) Nichrome
    d) Silver

    1. What happens to the brightness of bulbs in a series circuit when more bulbs are added?

    a) Brightness increases
    b) Brightness decreases
    c) Brightness remains the same
    d) Bulbs go out

    1. In a circuit, what is the purpose of an ammeter?

    a) To measure voltage
    b) To measure current
    c) To measure resistance
    d) To measure power

    Section B: Fill in the Blanks

    1. The SI unit of electric potential is __________.

    2. A material with high resistance is a good __________.

    3. The device used to control the current in an electric circuit is called a __________.

    4. In a parallel circuit, the potential difference across each branch is __________.

    Section C: True/False

    1. A closed switch in a circuit allows the flow of current. (True/False)

    2. A parallel circuit is more reliable than a series circuit. (True/False)

    Section D: Short Answer Questions

    1. Explain the term “electric potential difference.”

    2. Why is it important to insulate electrical wires?

    Section E: Long Answer Questions

    1. Discuss the advantages and disadvantages of using parallel circuits in household wiring.

    2. Elaborate on the concept of electrical power and its unit of measurement.

    Section F: Practical Application

    1. Design a circuit to light two bulbs in series and one bulb in parallel. Explain the differences in brightness between the bulbs.

    Feel free to mix and match these questions based on the emphasis you want to put on different topics within the chapter. Additionally, consider the progression of difficulty to ensure a smooth learning experience for the students.[/expand]

Chapter 10- Fun with Magnets[expand title=”Read Moreâž”” swaptitle=”🠔Read Less”]

Multiple Choice Questions (1 mark each)

  1. What is the property of a magnet that allows it to attract iron objects? a. Magnetization b. Repulsion c. Attraction d. Magnetic field

  2. The region around a magnet where its magnetic influence is felt is called the _______________. a. Magnetic field b. Magnetic pole c. Magnetic zone d. Magnetosphere

  3. Which of the following is a natural magnet? a. Bar magnet b. Horse-shoe magnet c. Lodestone d. Electromagnet

  4. What happens when like poles of two magnets are brought close together? a. They attract b. They repel c. No effect d. They oscillate

  5. A compass needle always points towards the _______________. a. South Pole b. North Pole c. Equator d. Magnetic Pole

  6. The opposite poles of two magnets _______________ each other. a. Attract b. Repel c. Neutralize d. Cancel

  7. What is the use of a magnetic compass? a. Attracting objects b. Pointing towards the North c. Repelling objects d. Creating a magnetic field

  8. Which of the following is not a magnetic material? a. Iron b. Plastic c. Steel d. Nickel

  9. Magnets attract only iron and steel. (True/False)

  10. The part of the magnet that points towards the North Pole of the Earth is called: a. South pole b. North pole c. Magnetic pole d. Attraction pole

Fill in the Blanks (1 mark each)

  1. A compass needle always points towards the _______________.
  2. The region around a magnet where its magnetic influence is felt is called the _______________.
  3. Magnetic materials get attracted to a magnet and can be turned into _______________ magnets.
  4. The opposite poles of two magnets _______________ each other.

True/False Statements (1 mark each)

  1. A freely suspended magnet always aligns itself in the north-south direction. (True/False)
  2. All materials are attracted to magnets. (True/False)

Short Answer Questions (2 marks each)

  1. Explain the difference between a natural magnet and an artificial magnet.
  2. Describe an activity to show that the Earth behaves like a giant magnet.

Long Answer Question (3 marks each)

  1. Elaborate on the applications of magnets in everyday life. Provide at least three examples.

Practical-Based Question (4 marks each)

  1. Activity: Take a bar magnet and a small piece of paper. Suspend the bar magnet freely. Observe its behavior and record your observations.

    Questions: a. What happens when the bar magnet is freely suspended? b. Explain the behavior of the bar magnet in terms of its poles.

Application-Based Question (5 marks each)

  1. Case Study: In a school, the teacher uses a horseshoe magnet to demonstrate various magnetic properties to the students. The students are curious to know why a horseshoe magnet is used instead of a simple bar magnet.

    Questions: a. Explain why a horseshoe magnet is preferred for certain demonstrations. b. Compare the magnetic properties of a horseshoe magnet with that of a bar magnet.

    Multiple Choice Questions (1 mark each)

    1. The material that retains its magnetic property for a more extended period is called: a. Temporary magnet b. Permanent magnet c. Electromagnet d. Magnetic insulator

    2. What happens to the strength of a magnet when it is cut into two pieces? a. Increases b. Decreases c. Remains the same d. Becomes zero

    3. What is the role of the magnetic field in attracting objects? a. Creates a force b. Generates heat c. Forms a barrier d. Causes vibration

    4. Which of the following is an example of a temporary magnet? a. Bar magnet b. Horseshoe magnet c. Electromagnet d. Lodestone

    5. The process of making a magnetic material into a magnet is called: a. Magnetization b. Demagnetization c. Neutralization d. Polarization

    6. What happens when the north pole of one magnet is brought near the south pole of another magnet? a. They attract b. They repel c. No effect d. They oscillate

    7. The property of a magnet by which it attracts a piece of iron is called: a. Attraction b. Magnetism c. Repulsion d. Magnetic induction

    8. What is the use of a magnetic shield? a. Enhancing magnetism b. Blocking magnetic field c. Increasing repulsion d. Promoting attraction

    9. Which of the following is NOT a magnetic material? a. Iron b. Cobalt c. Aluminium d. Nickel

    Fill in the Blanks (1 mark each)

    1. The region around a magnet where its magnetic influence is felt is called the _______________.
    2. The opposite poles of two magnets _______________ each other.
    3. The process of making a magnetic material into a magnet is called _______________.
    4. A material that is easily magnetized is called a _______________.

    True/False Statements (1 mark each)

    1. Magnets always have two poles. (True/False)
    2. The Earth’s magnetic field is only in the north-south direction. (True/False)

    Short Answer Questions (2 marks each)

    1. Explain the term “magnetic induction.”
    2. Differentiate between magnetic and non-magnetic materials.

    Long Answer Question (3 marks each)

    1. Describe an experiment to show that the force of attraction of a magnet is maximum at its poles.

    Practical-Based Question (4 marks each)

    1. Activity: Take two bar magnets and bring their like poles close to each other. Observe and record the results.

      Questions: a. Describe the behavior of the like poles. b. What does this observation reveal about the interaction of like poles?

    Application-Based Question (5 marks each)

    1. Case Study: In a science fair, a student demonstrates the use of magnets in separating iron nails from a mixture of iron nails and sand.

      Questions: a. Explain the principle behind using a magnet for this separation. b. Can this method be used for separating other materials? Explain.[/expand]

Chapter 11- Air Around Us[expand title=”Read Moreâž”” swaptitle=”🠔Read Less”]

Section A: Multiple Choice Questions (1 mark each)

  1. What is the approximate percentage of nitrogen in the air? a) 21% b) 31% c) 41% d) 51%

  2. Which gas is responsible for the greenhouse effect? a) Oxygen b) Carbon dioxide c) Nitrogen d) Argon

  3. The layer of the atmosphere where weather phenomena occur is called the: a) Stratosphere b) Troposphere c) Mesosphere d) Thermosphere

  4. Which instrument is used to measure humidity? a) Barometer b) Hydrometer c) Anemometer d) Thermometer

  5. The process by which plants release oxygen is called: a) Respiration b) Combustion c) Photosynthesis d) Decomposition

  6. The phenomenon where warm air rises and cold air sinks is known as: a) Convection b) Conduction c) Radiation d) Insulation

  7. What is the primary gas responsible for air pressure? a) Oxygen b) Nitrogen c) Carbon dioxide d) Argon

  8. Which gas is responsible for the colorless and odorless nature of the air? a) Oxygen b) Nitrogen c) Carbon dioxide d) Hydrogen

  9. The ozone layer is found in which layer of the atmosphere? a) Troposphere b) Stratosphere c) Mesosphere d) Thermosphere

  10. Which gas is essential for combustion to occur? a) Oxygen b) Nitrogen c) Carbon dioxide d) Helium

Section B: Fill in the Blanks (1 mark each)

  1. The two main components of air are ________ and ________.

  2. The instrument used to measure atmospheric pressure is called a ________.

  3. The layer of air around the Earth is known as the ________.

  4. The process of the Earth’s surface warming up due to the trapping of heat by certain gases is known as ________.

  5. The percentage of carbon dioxide in the air is approximately ________%.

Section C: True/False Questions (1 mark each)

  1. True/False: The composition of air is the same at all altitudes.

  2. True/False: The troposphere is the coldest layer of the atmosphere.

  3. True/False: Wind is caused by the rotation of the Earth.

  4. True/False: The ozone layer protects us from harmful ultraviolet (UV) rays.

  5. True/False: Carbon dioxide is a pollutant in the air.

Section D: Short Answer Questions (2 marks each)

  1. Explain the term “air pressure” and how it varies with altitude.

  2. Describe two human activities that contribute to air pollution.

  3. How does the greenhouse effect contribute to global warming?

  4. Differentiate between weather and climate.

  5. Explain why the stratosphere is important for protecting life on Earth.

Section E: Application-based Questions (3 marks each)

  1. Scenario: You are planning a hiking trip to a high-altitude location. Discuss how the reduced air pressure at higher altitudes might affect your breathing and what precautions you would take.

  2. Case Study: Investigate a local weather phenomenon (e.g., thunderstorms, tornadoes) and explain the science behind it. Also, discuss any safety measures people should take during such events.

  3. Practical Application: Imagine you are a scientist developing a new instrument to measure air quality. Describe the features and benefits of your instrument, and explain how it can be used to assess air pollution.

  4. Real-life Connection: Research and discuss a real-life environmental issue related to air quality (e.g., smog, acid rain). Explain its causes, effects, and possible solutions.

  5. Critical Thinking: If oxygen makes up about 21% of the air, why don’t we feel its presence? Explain the role of nitrogen and other gases in making the air suitable for breathing.

Section F: Diagram-based Questions (2-3 marks each)

  1. Label the layers of the atmosphere in the given diagram.

  2. Draw a simple diagram illustrating the greenhouse effect.

  3. Create a flowchart showing the process of the water cycle.

  4. Draw a diagram depicting the structure of the Earth’s atmosphere.

  5. Create a diagram showing the different layers of the atmosphere and their characteristics.

    Section G: Matching Questions (2 marks each)

    Match the items in Column A with the corresponding items in Column B.

    1. Column A
    • i. Conduction
    • ii. Convection
    • iii. Radiation
    • iv. Photosynthesis

    Column B

    • a. Transfer of heat through direct contact
    • b. Transfer of heat through the movement of fluids
    • c. Transfer of heat through electromagnetic waves
    • d. Process by which plants produce oxygen
    1. Column A
    • i. Anemometer
    • ii. Barometer
    • iii. Hydrometer
    • iv. Thermometer

    Column B

    • a. Measures wind speed
    • b. Measures atmospheric pressure
    • c. Measures humidity
    • d. Measures temperature
    1. Column A
    • i. Stratosphere
    • ii. Troposphere
    • iii. Mesosphere
    • iv. Thermosphere

    Column B

    • a. Where weather phenomena occur
    • b. Contains the ozone layer
    • c. The coldest layer
    • d. Contains the ionosphere

    Section H: Crossword Puzzle (3 marks)

    1. Across
      1. The gas essential for combustion.
      1. The layer of the atmosphere where the ozone layer is found.
      1. The process by which plants release oxygen.
    1. Down
      1. The gas responsible for the greenhouse effect.
      1. Instrument used to measure atmospheric pressure.
      1. The phenomenon where warm air rises.

    Section I: Assertion-Reasoning Questions (2 marks each)

    1. Assertion: The ozone layer is crucial for life on Earth. Reasoning: It absorbs harmful ultraviolet (UV) rays from the sun.

    2. Assertion: Air pressure decreases with an increase in altitude. Reasoning: The weight of the air above decreases as we go higher.

    Section J: Long Answer Questions (5 marks each)

    1. Essay Question: Explain the impact of air pollution on human health and the environment. Provide examples and suggest measures to reduce air pollution.

    2. Case Study: Investigate the causes and consequences of a specific air quality issue in your local area. Propose a community-based solution to address the problem.

    Section K: Revision and Recap (5 marks)

    1. Create a mind map summarizing the key concepts covered in the chapter “Air Around Us.” Include the components of air, atmospheric layers, and their significance.

    This set of questions offers a comprehensive coverage of the chapter, involving various question types. Adjust the marks assigned to each section based on the time and emphasis you’d like to give to different aspects of the chapter.[/expand]

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