Front

What are sand dunes formed by?

Back

Wind

Front

What is a fjord formed by?

Back

Ice

Front

In which direction does the sun set?

Back

West

Front

What is the process where gas turns back into a liquid?

Back

Condensation

Front

Is copper a conductor?

Back

True

Front

What is evaporation?

Back

The process where liquid turns into gas.

Front

What is precipitation?

Back

Any form of water that falls from clouds, including rain, snow, sleet, and hail.

Front

What is the water cycle?

Back

The continuous movement of water on, above, and below the surface of the Earth.

Front

What is a renewable resource?

Back

A resource that can be replenished naturally, such as solar energy or wind.

Front

What is a non-renewable resource?

Back

A resource that cannot be replaced once it is used, such as fossil fuels.