← All subjects

Earth Science

Plate tectonics, weather, oceans and the planet's systems.

Core concepts

Plate tectonics

Earth's crust floats on the mantle in slabs. Where they meet you get quakes, ranges and volcanoes.

The water cycle

Evaporation, condensation, precipitation, collection — the same water for billions of years.

Rock types

Igneous cools from magma, sedimentary settles in layers, metamorphic is reshaped by heat and pressure.