Unit 4: States of Matter and Phase Changes

Matter that has no definite shape, but has a definite volume.

• Solid
• Liquid
• Gas

Matter that has a definite shape, and a definite volume.

• Solid
• Liquid
• Gas

Matter that has no definite shape, nor volume.

• Solid
• Liquid
• Gas

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

NGSS.MS-PS3-4

Condensation is . . . .

• gas to liquid
• liquid to gas
• gas to solid
• solid to liquid

Freezing (or solidification) is . . . .

• liquid to solid
• solid to liquid
• solid to gas
• solid to plasma

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

• Sublimation
• Condensation
• Liquid

Endothermic phase changes include

• conduction, convection and radiation
• freezing and condensation
• vaporization and condensation
• melting, boiling, evaporation and sublimation