Earth Systems
Süžeeskeem Tekst
- Sammy what are Seismic waves?
- They are vibrations that travel through Earth carrying the energy that releases an earthquake.
- You know what we learned in Science today? We learned that the Earth and every other planet they are hollow.
- My teacher told me that. What do you mean that the Earth is not hollow?
- WAIT WHAT DID YOU SAY? WHO TOLD YOU THAT? CAN I BEAT THEM? Oh darling the Earth is not hollow.
- So let me guess, the crust is the outer layer, the one with the least dense, and includes both dry land and ocean floor?
- YOU ARE RIGHT!!
- So Sammy is there anything else that I need to know?
- Yes, Olivia there are some more you need to learn. One more thing you need to learn is the Mantle.
- The Mantle is located between the crust and the core ,which is the thickest layer. It has 3 parts. The upper (lithosphere), middle (asthenosphere), and lower (mesosphere).
- Hold it Olivia I am not done yet. Next up with have the Lithosphere. It is the zone of brittle rock made from the crust and upper layer of mantle.
- Later we have the Asthenosphere. The part of the middle mantle that flows like hot asphalt under a heavy weight. Any questions?
- I think there is something called the Earth's core and it has 2 layers right? Inner core and outer core. And it is mostly made out of iron. The Earth acts like a giant bar magnet. Right?
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