A very high piece of land
mountain
An area covered by sand where there is little flora and fauna
desert
water falling down from a height
waterfall
A long and narrow body of water
river
a large area of water completely surrounded by land
lake
A very large body of salt water. Most of our planet is covered by them.
ocean
A piece of land completely surrounded by water
island
An area of sand and water at the edge of a sea
beach
A mountain which contains lava.
Volcano
a large hole on the sides of a mountain
cave