Class 7 Science Student Questions

Showing: Class 7 / Science (212 questions)

• by Y.JESSICA GEONA RAJ · Class 7

  Assertion (A): Drinking water is not necessary if we consume fruits and juices. Reason (R): Fruits and juices contain enough water to meet daily hydration needs.

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• by Y.JESSICA GEONA RAJ · Class 7

  Which of the following statements is/are correct?

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• by Y.JESSICA GEONA RAJ · Class 7

  How does the food chain differ in a desert ecosystem compared to a rainforest ecosystem?

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• by Y.JESSICA GEONA RAJ · Class 7

  What are the different trophic levels in a grassland food chain?

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• by Y.JESSICA GEONA RAJ · Class 7

  Explain the food chain in an aquatic ecosystem.

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• by Y.JESSICA GEONA RAJ · Class 7

  Describe the food chain in a forest ecosystem.

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• by Y.JESSICA GEONA RAJ · Class 7

  What is the significance of the predator-prey relationship in an ecosystem?

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• by Y.JESSICA GEONA RAJ · Class 7

  How do producers obtain their energy?

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• by Y.JESSICA GEONA RAJ · Class 7

  Explain the role of decomposers in a food chain.

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• by Y.JESSICA GEONA RAJ · Class 7

  In the food chain: Grass → Elephant → Lion Which of the following is a primary consumer?

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• by Y.JESSICA GEONA RAJ · Class 7

  What is a producer in a food chain?

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• by Y.JESSICA GEONA RAJ · Class 7

  Assertion (A): Digestion starts in the stomach. Reason (R): The stomach is the first organ food enters after chewing.

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• by Y.JESSICA GEONA RAJ · Class 7

  Assertion (A): All siblings look exactly the same. Reason (R): They inherit the same genes from their parents.

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• by Y.JESSICA GEONA RAJ · Class 7

  Assertion (A): The heart beats faster during exercise. Reason (R): The body needs more oxygen during exercise.

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• by Y.JESSICA GEONA RAJ · Class 7

  During a nature documentary, Aman learned that whales have a slow heartbeat, especially when they dive deep underwater. Why might a whale’s heartbeat slow down during a deep dive?

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• by Y.JESSICA GEONA RAJ · Class 7

  Riya visited a zoo and noticed that the rabbit was hopping quickly while the elephant was moving slowly. She learned that the rabbit’s heart beats much faster than the elephant’s. Why does the rabbit have a faster heartbeat than the elephant?

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• by Y.JESSICA GEONA RAJ · Class 7

  Which of the following examples shows that we can use our breath to warm objects?

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• by Y.JESSICA GEONA RAJ · Class 7

  Which of the following shows the correct direction of flow of air during exhalation?

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• by Y.JESSICA GEONA RAJ · Class 7

  Which of the following is an example of inheritance in plants?

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• by Y.JESSICA GEONA RAJ · Class 7

  Where are genes found?

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