1. The Earth’s Crust The Earth’s Interior
Monday, November 12, 2018Monday, November 12, 2018

2. There are four layers in the Earth:

3. #1 Crust – the thin, outermost layer
lies on top of the mantle
it is 5 to 35 km thick.

4. #2 Mantle – made of rock material with the consistency of taffy so it is capable of flow.
The temperature is 4000 degrees Celsius and it is 3555 km’s thick

5. #3 Outer Core – it is a liquid layer.
It is 2270 km’s thick and the temperature is 5500 degrees Celsius

6. Play Video #4 Inner Core - a solid metallic sphere (iron and nickel)
It is 2432 km’s thick and the temperature is 6000 degrees Celsius.
Play Video

7. To find out, click here. To find out, click here.
How do we know all of this about the inside of the Earth if we’ve never been there?
To find out, click here.
Why is the spinning Earth’s core so important to us?
To find out, click here.

8. Bonus Question: How do the s-waves produced from explosives tell us what’s inside the volcano?

9. If you finish early, explore these sites and see what you can discover:
Latest Earthquakes