unit 2 matter science test review

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What are the three states of matter?

Back

Solid, liquid, and gas.

Front

What is a reversible change?

Back

A reversible change is a change that can be undone, like melting ice back into water.

Front

What is an irreversible change?

Back

An irreversible change is a change that cannot be undone, like baking a cake.

Front

Can water exist in all three states of matter?

Back

Yes, water can be solid (ice), liquid (water), or gas (steam).

Front

Is a gas one of the three states of matter?

Back

Yes, a gas is one of the three states of matter.

Front

What happens to the particles in a solid?

Back

In a solid, particles are tightly packed and vibrate in place.

Front

What happens to the particles in a liquid?

Back

In a liquid, particles are close together but can move around each other.

Front

What happens to the particles in a gas?

Back

In a gas, particles are far apart and move freely.

Front

What is an example of a reversible change?

Back

Freezing and melting water.