HEAT

The measurement of how hot an object or substance is.

How does the liquid inside a thermometer expand or contract? When the thermometer _________ the liquid inside________ due to _________.

A.heats up, drops, expansion

B.cools, rises, contraction

C. heats up, rises, expansion

In the ball and ring demonstration, the ball was not able to fit through the ring when heated because the metal ball ___________ .

A.contract

B.expand

C.cold

D.hot

The decrease in volume of matter that occurs when matter is cooled.

The increase in volume of matter that occurs when matter is heated.

Ice cube can change into a liquid when it's _________ .

The freezing point of water is...

The boiling point of water is...

What scientific tool can be a student use to measure the freezing point of water?

The freezing and boiling points of water are the same.

Why does your hand feel cold after two minutes of holding the glass?

A.The hand gains heat

B.The glass gain heat

C.The hand loses heat

D.The glass loses heat

Daniel cannot open a tight bottle cap. What can be done so that the bottle cap can be opened?

A.Immerse the whole bottle in hot water.

B.Immerse the bottle cap in hot water.

C.Immerse the bottle cap in cold water.

D.Immerse the whole bottle in cold water.

The expansion of a material occurs when material ___________ heat.

The contraction of a material occurs when material ___________ heat.

Heat is a form of energy.