Phase Changes and Molecules

When a substance melts, the kinetic energy _____________.

• decreases
• stays the same
• increases
• decreases then increases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When molecules flow around each other, they are in this phase

• solid
• liquid
• gas
• plasma

Tags

NGSS.MS-PS1-4

What takes place when a liquid changes to a gas?

• condensation
• melting
• evaporation
• freezing

Tags

NGSS.MS-PS1-4

What is a group of atoms joined together called?

• an atom
• molecule
• matter
• compound

Tags

NGSS.MS-PS1-1

What takes place when a solid changes to a liquid?

• condensation
• melting
• evaporation
• freezing

Tags

NGSS.MS-PS1-4

What is the average kinetic energy of a substance called?

• volume
• temperature
• pressure
• movement

Tags

NGSS.MS-PS1-4

To provide evidence that goes against a claim is called

• support
• choose
• agree with
• refute

Tags

NGSS.MS-PS2-4

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

5. What is it called when a solid turns directly into a gas?

• Sublimation
• Condensation
• Liquid

Tags

NGSS.MS-PS1-4

Change from Gas to Solid is called........

• Sublimation
• Deposition
• Fusion
• condensation

Tags

NGSS.MS-PS1-4