Page 12 - Innovator's Science-8

E. Long answer type questions. Critical Thinking Skills
1. What is the scientific reason behind a car stopping when the brekes are applied?

2. How do we see objects using light?
3. Why is classifying substances important in science?
4. How do particles behave in solids compared to gases?
5. How does pressure influence the weather?

6. How does the Moon's movement help us measure time?

Project Ideas Exploration

• Make a project on the list the reasons why human ac vi es are affec ng the Earth's climate?

• Collect informa on on scien sts who studied the behavior of light and mirrors.
• Let us explore the nature of the following changes whether they can be reversed or not.
a. Disappearance of common salt on dissolving in water.

b. Cu ng of potato
• Find out if there is an organisa on in your area which provides relief to those suffering from natural
disaster. Enquire about the type of help they render to the vic ms of earthquakes. Prepare a brief
report on the problems of the earthquake vic ms.

• Take a small iron nail, a coal piece, a piece of thick aluminum wire and a pencil lead. Beat the iron
nail with a hammer. Try to hit hard the aluminium wire also. Then repeat the same kind of
treatment on the coal piece and pencil lead. Record your observa ons in your notebook.

Life Skills Inference

• Describe the steps involved in scien fic inves ga on.
• Discuss how curiosity helps new discoveries.

Enhance your Life Skills Mental Development
• Mohit was standing in front of a mirror. He wondered how mirrors and lenses help in daily life. Write
what he might have discovered a er experimen ng.

• Imagine you dropped a ball from a height. Describe the forces ac ng on it while it moves.

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Science-8