States of Matter Unit 2

Front

What are the characteristics of particles in a gas?

Back

The particles in a gas are spread out and move about freely.

Front

If two 12-ounce cans of soda at the same temperature are combined, how does the thermal energy compare to the individual cans?

Back

The amount of thermal energy in the combined soda is about twice the amount of thermal energy in the individual cans.

Front

What is the better estimate for the temperature of two combined cans of soda at 40°F?

Back

The better estimate for the temperature of the combined soda is 40°F.

Front

What happens to the particles of a sample of matter as the temperature decreases?

Back

The particles move more slowly.

Front

What is the chemical symbol for iron?

Back

Fe

Front

What is the definition of matter?

Back

Matter is anything that has mass and takes up space.

Front

What are the three main states of matter?

Back

The three main states of matter are solid, liquid, and gas.

Front

How do particles behave in a solid?

Back

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

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of the particles in a substance.

Front

How does temperature affect the state of matter?

Back

Increasing temperature can change a solid to a liquid (melting) or a liquid to a gas (evaporation), while decreasing temperature can change a gas to a liquid (condensation) or a liquid to a solid (freezing).