TCI 3.4 LG Review

A state change changes

• the properties and the substance.

• the properties but not the substance.

• the substance but not the properties.

• neither the properties or the substance.

What happens when a substance melts?

• the particles slow down and stick together

• the particles speed up and move apart

• the particles slow down and stay close

• the particles speed up but stay close

_______ happens when a liquid boils.

• Melting

• Freezing

• Evaporation

• Condensation

Condensation is the state change from

• liquid to solid.

• gas to liquid.

• solid to liquid.

• gas to solid.

What changes in a reaction?

• the properties and the substances

• he substances but not the properties

• the properties but not the substances

• neither the properties or the substances

What can be observed when energy is stored?

• light

• heat

• cold

• sound

Burning is a reaction that causes

• an energy change

• a solid formation

• a gas formation

• all of the above

Which of the following is NOT a reaction?

• a cold pack becoming cold

• a light bulb giving off light

• gas appearing in boiling water

• bleach turning a shirt white

Cooking pasta

• changes the pasta properties.

• causes a reaction with water.

• changes the pasta substance.

• causes no changes to the pasta.

What happens to glass when you melt it?

• it becomes a gas

• it becomes a liquid

• it becomes a solid

• it does not change