1. A amazing lesson by: Taylor gentry & Montana Macy Terry 4th period
Earth
A amazing lesson by:
Taylor gentry & Montana Macy
Terry 4th period

2. Facts about earth
1.Earth has a dense core made mainly of iron and nickel 2. Earth has liquid water and a suitable temperature range and atmosphere for living things to survive

3. Earth has three main layers crust, a mantle, and a core

4. Earth is unique in our solar system in having liquid water on its surface

5. Earths Atmosphere
1. Earth has enough gravity to hold on to most gases.
2. Earth is the only planet with an atmosphere that is rich in oxygen
3.Oxygen makes up about 20% of earths atmosphere.
4. Earth experiences a green house effect.
5. Without the atmosphere earth would be much colder.

6. Video of earth(:

7. Things Earth is made up of
The theory that a large sea of magma once flowed beneath earths surface.
These are the basic elements of what earth is made up of 32% of iron 30% oxygen 15% silicon 14% magnesium 3% sulfur 2% nickel 1.5% calcium 1.5% aluminium

8. The earth

9. (;*The end*(;