Study Guide: Heating and Cooling Substances

What is a reversible change?

• A change that cannot be undone

• A change that can be undone or reversed to get the original substance back

• A change that creates a new substance

What is an irreversible change?

• A change that can be undone

• A change that cannot be undone. The original substance is changed into a new substance with different properties.

• A change that only affects temperature

Heating is ________ heat energy to a substance, causing its temperature to rise.

• adding

• removing

• blocking

• ignoring

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Cooling is ________ heat energy from a substance, causing its temperature to drop.

• removing

• adding

• multiplying

• creating

Tags

NGSS.MS-PS1-4

Melting is a change from a solid to a ________, caused by heating. (e.g., ice to water)

• liquid

• gas

• plasma

• powder

Tags

NGSS.MS-PS1-4

Freezing is a change from a liquid to a ________, caused by cooling. (e.g., water to ice)

• solid

• gas

• plasma

• vapor

Tags

NGSS.MS-PS1-4

Evaporation is a change from a liquid to a ________, caused by heating. (e.g., water to steam)

• gas

• solid

• plasma

• crystal

Tags

NGSS.MS-PS1-4

Condensation is a change from a gas to a ________, caused by cooling. (e.g., steam to water droplets)

• liquid

• solid

• plasma

• gas

Tags

NGSS.MS-PS1-4

Baking uses heat to cook food, which creates a new substance that ________ be turned back into the original ingredients. (e.g., baking a cake)

• cannot

• can

• sometimes can

• easily can

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Rusting is an irreversible chemical change that happens when iron is exposed to ________ and moisture.

• oxygen

• carbon dioxide

• hydrogen

• nitrogen