A piece of land that is surrounded by water on three sides. = Island

sun, planets, and all the other objects that revolve around the sun

a ridge of rock in the sea formed by the growth and deposit of coral.

low land that is seasonally flooded

A force that pulls objects toward each other

Any large mass of ice that moves slowly over land

A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity = solar system

Where the land meets the sea = coastline

Any object that orbits around another object in space = swamp