Eureka! Expansion and contraction

What is the process called when a liquid turns into a gas?

• Condensation

• Evaporation

• Freezing

• Sublimation

Tags

NGSS.4-PS3-2

What happens to the air inside a balloon when it is heated?

• It expands and the balloon grows

• It contracts and the balloon shrinks

• It freezes

• It evaporates

Tags

NGSS.MS-PS1-4

What happens to gas molecules when they cool down?

• They slow down and crowd together

• They move faster

• They change into liquid immediately

• They expand

Tags

NGSS.MS-PS1-4

Why should a bottle not be filled to the top with liquid?

• To allow for expansion if heated

• To save material

• To allow for mixing

• To prevent evaporation

Tags

NGSS.MS-PS1-4

What causes the thump noise when a car drives over a bridge?

• High speed of the car

• Poor tire quality

• Expansion gaps in the bridge

• Uneven road surface