Together, these layers protect us from the sun’s harmful radiation and keep temperatures on Earth habitable for ... Climate change caused by human activity has also affected the atmosphere.

The Earth is made up of different layers: Therefore ... The movement of the plates and the activity inside the Earth, is called the theory of plate tectonics.

The first step toward learning about plate tectonics is to learn about the Earth's interior structure. This lesson should address both of these topics. This activity is designed for one 1-hour ...

The movement of the plates, and the activity inside the Earth, is described as the theory of plate tectonics.