Oceans and climate
Water has amazing properties which help to control our climate and make life on Earth possible. Although we call our planet Earth, only 29% of its area is actually land; the rest is covered by water and almost all of this water is in the oceans. Ocean waters continuously move around the globe as if they were on a huge conveyor belt, moving from the surface waters to the deep and back again. Wind, the saltiness of the water and temperature all control this movement. This ocean circulation helps to spread the heat from the Sun throughout the Earth.