Our Changing Earth

1. Formation of the continents

1.1. The separated slowly =contenetal drift

1.2. The Pangaea Broke into little peices and drifted off.

1.3. The conteints fit together like a puzzle.

1.4. It was one large mass called Pangaea.

2. How the conteints moved

2.1. Cracks divide Earth's surface into parts called plates

2.2. If the plates collide They form a mountain

2.3. If the plates pull apart It creates a valley

3. Earth changes all the time

3.1. The contents where not always in the same place.

3.1.1. Erosion Takes place over millons of years

3.2. The water was not always in the same place.

4. The center of the Earth is were the changes come form

4.1. The center of the Earth is very hot.

4.2. The hot lava floaws up

5. The strong heat in the center of the earth causes many changes on the surface

5.1. strong heat causes many changes

6. Inside the Earth

6.1. The outer layer is the crust

6.2. Earth has several layers

6.3. Under the crust is the mantle