Phase Change Amplify Test Review

Scientists digging in a cave found an unknown substance. The scientists found that the substance’s molecules were moving around each other. The scientists increased the speed of the substance’s molecules and caused a phase change. How did the scientists do this, and how did this affect the substance?

The scientists transferred energy . . .

• into the substance, and the substance changed into a gas

• into the substance, and the substance changed into a liquid.

• out of the substance, and the substance changed into a solid.

• out of the substance, and the substance changed into a liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

When molecules move slower, kinetic energy

• increases
• stays the same
• decreases
• none of these

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

What happens to molecules when kinetic energy increases?

• they move slower
• they move faster
• they get heavier
• it depends on the types of molecules

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

If energy is taken out of the substance, and the substance changed into a liquid,

• the substance started as a solid
• the substance started as a liquid
• the substance stayed the same
• the substance started as a gas

Tags

NGSS.MS-PS1-4

Before: molecules move around each other, After: molecules move in place

• Before, the substance was a solid and later a liquid.
• Before,the substance was a gas, and later a liquid.
• Before, the substance was a liquid and later a solid.
• Before,the substance was a liquid, and later a gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If you have a liquid that changes to a gas, explain it's freedom of movement in both phases.

• molecules move away from each other, then around each other
• molecules move in place, then around each other
• molecules move around each other, then away from each other
• molecules move around each other, then in place

Tags

NGSS.MS-PS1-4

What takes place when a solid changes to a liquid?

• condensation
• freezing
• melting
• evaporation

Tags

NGSS.MS-PS1-4

What takes place when a gas changes to a liquid?

• melting
• freezing
• evaporation
• condensation

Tags

NGSS.MS-PS1-4

What takes place when a liquid changes to a solid?

• condensation
• melting
• evaporation
• freezing

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

To provide evidence that goes against a claim is called

• support
• choose
• agree with
• refute