or log in
Domesticated animals and crops originate from various parts of the world.
Jupiter is the largest planet of the Solar System, it has two and a half times the mass...
The Earth is a rocky planet with a solid crust and oxygen in its atmosphere.
Flooding rivers can cause numerous environmental issues. Let's see how we can protect ourselves...
This animation demonstrates the process of star development for average and massive stars.
This animation presents the states and state capitals of Germany
The lesson introduces you to the movement of Earth around the Sun.
The formation of the Sun and the planets started with the contraction of a dust cloud...