This is a dry, usually sandy place. It doesn't rain much here, and there aren't many plants.

This is a low area of land between mountains or hills.

This is an area of water with land all around it.

This is a flow of water that happens when a river falls.

This is a large area of land that has lots of trees on it.

The Amazon is a river.

The Atlantic and the Pacific are islands.

The Mediterranean is a huge lake.

The Caspian Sea is actually a lake.

Mount Everest is in the Andes.

Death Valley is the hottest desert in the world.

Canada and Russia are the largest countries in the world.

Burj Khalifa is the tallest building in the world.

Which ocean is deeper: the Pacific or the Atlantic?