Unit 10 Day 1 ET

Which of the following causes a substance to change its phase?

• Mass

• Energy

• Density

• Volume

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which phase change is an example of an endothermic process?

• Freezing

• Condensation

• Boiling

• Deposition

Tags

NGSS.MS-PS1-4

What happens to temperature during a phase change?

• It increases quickly

• It decreases rapidly

• It stays constant

• It depends on the material

Tags

NGSS.MS-PS1-4

Which of the following is true about pressure and phase changes?

• Pressure does not affect phase changes

• Higher altitude means more pressure

• More pressure at sea level can raise boiling points

• Pressure affects only solids

Which of the following is an example of an exothermic phase change?

• Melting

• Freezing

• Boiling

• Sublimation

Tags

NGSS.MS-PS3-4

In a heating curve, what do the flat lines represent?

• Temperature increase

• Cooling periods

• Phase changes

• Chemical reactions

Tags

NGSS.MS-PS1-4

Which reaction requires energy input to proceed?

• Combustion

• Freezing water

• Condensation

• Photosynthesis

Tags

NGSS.MS-PS1-4

Which of the following describes an exothermic reaction?

• Absorbs heat from surroundings

• Occurs only in cold environments

• Releases heat into surroundings

• Needs sunlight to occur

Tags

NGSS.MS-PS1-4

Which reaction would feel cold to the touch?

• Freezing

• Condensation

• Combustion

• Melting ice

Tags

NGSS.MS-PS1-4

Why does water boil at a lower temperature at higher altitudes?

• The water is denser

• Air pressure is lower

• It’s colder at high altitudes

• There's less oxygen