Phase Changes and States of Matter

Molecules are far apart and are in constant motion.

• Solid
• Liquid
• Gas

Tags

NGSS.MS-PS1-4

Molecules change position easily and slide past one another.

• Solid
• Liquid
• Gas

Tags

NGSS.MS-PS1-4

Molecules move, but they only vibrate in place.

• Solid
• Liquid
• Gas

Tags

NGSS.MS-PS1-4

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts

Tags

NGSS.MS-PS1-4

Phase changes are

• a physical change

• a chemical change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When when kinetic energy is lost, this state condenses into a liquid and the molecules slow down.

• Solid

• Liquid

• Gas

Tags

NGSS.MS-PS1-4

When kinetic energy is lost, this state freezes into a solid and the molecules slow down.

• Solid

• Liquid

• Gas

Tags

NGSS.MS-PS1-4

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

• Sublimation

• Condensation

• Liquid

Deposition is the opposite of sublimation.

• True
• False

Tags

NGSS.MS-PS1-4

All phase changes (changing states) requires energy to be gained or lost.

• True

• False

Tags

NGSS.MS-PS1-4