Large area of salt water
Sea
A mountain with a large hole at the top which sometimes explodes lava
Volcano
A long, natural area of water that goes into a sea, lake, or another river
River
An area of low land between hills or mountains
Valley
A large area of water that has land all around it
lake
A huge hill that is covered with snow on its peak
Mountain
A raised area of land, smaller that a mountain
hill
A large, hot, dry area of land with very few plants
Desert
A large area of trees growing closely together
Forest