Page 99 - Innovator's Science-8

C. State whether the given statements are True (T) or False (F). Problem Solving Skills
1. Matter is anything that has mass and occupies space.

2. Weathering causes the rocks to become stronger because of erosion.
3. One whole piece of chalk was made up of a large number of smaller units.
4. Acharya Kanad, talked about the idea of an atom.
5. In a liquid state, particles are somewhat farther away from each other.

D. Match the following. Decision-making Skills
Column A Column B
1. Particulate matter i. Vibrate in a fixed position
2. Matter is composed of ii. Very large

3. The state of matter depends on iii. Atoms 86 molecules
4. Interparticle spacing in gases iv. Temperature and Pressure
5. Particle movement in solids v. Tiny particles suspended in the air

E. Short answer type questions. Critical Thinking Skills
1. What determines the different states of matter?

2. Which state of matter has the least interparticle space?
3. Define interparticle forces.
4. How does temperature affect the state of matter?

5. How does the boiling point change with pressure?
F. Long answer type questions. Cognitive Skills

1. Differentiate the terms atoms, molecules, and ions.
2. Describe the motion of particles in solids, liquids, and gases.
3. How do intermolecular forces differ in solids, liquids, and gases?

4. How does temperature affect the movement of particles?
5. Give an example of how heating affects particles and their smell.

Project Ideas Exploration

• Ma er is anything that has mass and occupies space. From the air we breathe to the water we drink,
everything around us is made of ma er. But what is ma er made of? Make a project on this.

Life Skills Inference

• What happens when we heat camphor in one corner of a room, the fragrance reaches all corners of
the room? Why?

Enhance your Life Skills Mental Development

• Drop a li le ink into a glass of water and watch it spread without s rring. That's diffusion — par cles
moving and mixing on their own.

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Science-8