What is Heat/The Particle Theory

What does the particle theory state about all matter?

• It is made up of large, stationary particles.

• It is made up of tiny particles that are always moving.

• It is made up of particles that only move when heated.

• It is made up of particles that are always fixed in place.

What happens to the particles of a substance when it gets warmer?

• They stop moving.

• They move slower.

• They move faster.

• They become larger.

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How are particles arranged and how do they move in a solid?

• They are far apart and move freely.

• They are close together and slide around each other.

• They are tightly packed in a fixed pattern and vibrate in place.

• They are randomly arranged and move quickly.

What happens to the particles of a liquid when they gain enough energy to become a gas?

• They become tightly packed and vibrate in place.

• They remain close together but slide around faster.

• They break away completely from the group and spread out.

• They shrink in size and become invisible.