Changes in Matter

When thermal energy is increased in a solid, what change in state is happening?

• Melting

• Evaporation

• Freezing

• Condensation

When thermal energy is decreased in a liquid, what change in state is happening?

• Melting

• Freezing

• Condensation

• Evaporation

When thermal energy is increased in a liquid, what change in state is happening?

• Melting

• Evaporation

• Condensation

• Freezing

When thermal energy is decreased in a gas, what change in state is happening?

• Melting

• Freezing

• Evaporation

• Condensation

When thermal energy is increased in a liquid and evaporation occurs, what state of matter does the liquid change into?

• Solid

• Gas

When thermal energy is decreased in a liquid and freezing occurs, what state of matter does the liquid change into?

• Gas

• Solid

What happens to the movement of the particles in a substance when the thermal energy is decreased?

• Speed Up

• Slow Down

What happens to the movement of the particles in a substance when the thermal energy is increased?

• Speed Up

• Slow Down

What happens to the arrangement of particles as thermal energy is removed from a substance?

• The particles get farther apart.

• The particles get closer together.

An ice cube is placed in a pan. The pan is placed over an open flame. Which change will MOST likely happen over time?

• The ice changes to a gas then a liquid
• The ice changes to a gas and then back to a solid
• The ice changes to a liquid then to a gas.
• The ice changes to a liquid and back to a solid.