ChemCom Phase Change and Heating Curves 2023

What is the state of matter at A?

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

What is the state of matter at C?

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

What is the state of matter at E?

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What phase change occurs at D as heat is added?

• melting

• boiling

• sublimation

• freezing

Tags

NGSS.MS-PS1-4

What phase change occurs at B as heat is added?

• melting

• condensation

• sublimation

• boiling

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What line segment represents when the substance is only in the solid state?

• A-B

• B-C

• C-D

• D-E

Tags

NGSS.MS-PS1-4

Molecules in this state will change position easily and slide past one another.

• Solid

• Liquid

• Gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

7. All phase changes (changing states) requires energy to be added or taken away.

• True
• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Water freezing to ice is an example of a:

• Physical change
• Chemical change

Tags

NGSS.MS-PS1-4

The temperature at which matter beings to turn from a liquid to a gas

• boiling point

• melting point

• phase change

• condensation

Tags

NGSS.MS-PS1-4