U4M14 Lesson 1: Solids, Liquids, and Gases

Particles are closely packed and vibrate in place.

Particles are far apart and move freely.

Particles are loosely packed and slide past each other.

Particles are stationary and do not move.

It is the energy that causes particles to vibrate.

It is the energy that causes particles to stop moving.

It is the energy that gives solids their color.

It is the energy that makes solids melt instantly.

Thermal expansion causes substances to increase in size when heated.

Thermal expansion only occurs in solids.

Thermal expansion is responsible for cracks in concrete sidewalks.

Thermal expansion decreases the size of a substance when cooled.