- Created by: naomi mann
- Created on: 23-12-08 12:10
What key words related to this subject?
Solar system- the sun and objects which orbit around it, planets and there moons, comets and aseroids.
Milky way- The galaxy in which the sun and planets including earth are located
Sun- The star nearest the earth
Crust- A rocky layer at the surface of the earth
Mantle- A thick layer of rock beneath the earth's crust, which extends about half way down to the earths center.
Describe the rock cycle
- Weathering and erosion
- Heat and pressure
- Volcanic eruption
What are the three types of rock?
Describe the structure of the Earth
1. Inner core, made of iron & nickel. It is solid because it is under high pressure and very hot.
2. Outer core, made of iron & nickel . It is aliquid layer, hot temperature, lower pressure than inner core.
3. Mantle, made of hot rock called molten rocks called silicates, it is a liquid layer and it has a very high temperature.
4.Crust made up of rocks silicates which are solid lower temperature.