PS.5.1.2 (5.P.2.3) #2: Schoolnet

Front

What type of change occurs when rust forms on metal?

Back

Chemical change.

Front

What happens to sugar when it is added to water?

Back

The sugar dissolves and colors the water.

Front

What is the first step in the water cycle?

Back

Evaporation.

Front

What gives water the energy to evaporate?

Back

Sunlight.

Front

What property of sugar remains after it is dissolved in water?

Back

Taste.

Front

What happens to the inside of an egg when it is boiled?

Back

The liquid becomes solid.

Front

What is rust?

Back

Rust is a reddish-brown flaky coating that forms on iron or steel when it reacts with oxygen and moisture.

Front

What is evaporation?

Back

Evaporation is the process by which liquid water turns into water vapor.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.