A large mass of ice.
glacier
A flat lying land
plain
Water that runs in a narrow path downhill toward the sea or lake
river
A piece of land surrounded by water
island
Water that falls off in a steep drop.
Waterfall
A large body of water that is salty
ocean
Water surrounded by land
lake
Land with water on 3 sides
peninsula
Elevated flat land
Plateau
A whole in the earth that allows lava to flow out
volcano
A large underground space
cave
A low area between two hills
valley
A deep valley with steep sides
canyon
High ground that is rounded
hills
