What is the earth all about?

Our home planet Earth is a rocky, terrestrial planet. It has a solid and active surface with mountains, valleys, canyons, plains and so much more. Earth is special because it is an ocean planet. Water covers 70% of Earth's surface. Our atmosphere is made mostly of nitrogen and has plenty of oxygen for us to breathe. read more

Download Questions about Earth (all answers found on this page) The Earth is unlike every other planet in the Solar System in a number of different ways. It is the only planet that has an atmosphere containing 21 percent oxygen. read more

Earth is the only planet known to support life. Learn about Earth science facts and the planet’s interior composition, surface and atmosphere. read more