Front

Identify the physical change from the following options: egg frying, ice melting, iron rusting, paper burning

Back

ice melting

Front

Back

salt water

Front

Back

The process is a physical change that can be reversed because the water can be changed back to ice and no new substance is formed.

Front

Back

Plants can use light from a lightbulb and oxygen that is dissolved in water to grow underwater.

Front

Back

The model shows summer in the Northern Hemisphere and winter in the Southern Hemisphere.

Front

Back

Gravity keeps the Moon from moving away from Earth.

Front

Back

oxygen 

Front

Back

The machine makes the ice smoother so there is less friction between the ice and the puck.

Front

Back

The coin has a definite shape and volume.

Front

Back

The ball will continue rolling to the left, then reverse direction and roll partway up the right side of the valley.