Class 8 · Science · Curiosity

7. Particulate Nature of Matter

Try question 1

In which state are the particles of matter packed most closely?

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Answer and explanation

Answer: A. Solid

Particles in solids are tightly packed and only vibrate.

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Try question 2

The smell of an incense stick spreads through a room because of

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Answer and explanation

Answer: A. diffusion

Gas particles move and mix with air particles.

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Try question 3

When a substance is heated, its particles generally

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Answer and explanation

Answer: A. move faster

Heat gives particles more kinetic energy.

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