Phase Changes & Density

The phase change from water vapor to liquid water is known as...

• evaporation
• precipitation
• condensation
• sublimation

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

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

According to the heating curve, when a substance is melting, what is happening to the temperature as energy is continually being added it?

• The temperature is increasing as more energy is being added to melt the substance.

• The temperature stays the same as energy continues to be added to melt the substance.

• The temperature is decreasing as more energy is being added to melt the substance.

• The flat curve indicates a change in the temperature allowing for a change in phase.

Tags

NGSS.MS-PS1-4

At POINT B, the temperature is (a)   degrees C.

Tags

NGSS.MS-PS1-4

By POINT E, the substance is completely in the (a)   phase.

Tags

NGSS.MS-PS1-4

A change of state is a(n) ___________ process

• reversible

• irreversible

• fun

• chemical

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

What state of matter is pictured?

• Solid

• Liquid

• Gas

• Plasma

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Where on the graph are phase changes taking place?

• 1

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-4