The natural world
Explore weather and climate
You might think that weather and climate are the same thing, but they are actually different.
Explore biomes
Biomes are areas with a similar climate and landscape.
Explore mountains
Mountains are very high areas of land.
Explore volcanoes
A volcano is an opening in the Earth鈥檚 crust that allows magma, hot ash and gases to escape.
Explore earthquakes
Discover that earthquakes are caused when the Earth's crust pulls and pushes against itself.
Explore oceans
Discover that oceans cover over two-thirds of the Earth's surface.
Explore rivers
Find out how rivers always flow downhill because of gravity.
Explore the water cycle
The water cycle works by using the energy of the Sun to exchange water from oceans and lakes to the atmosphere.