Layers of earth
Storyboard Text
- Slide: 1
- We are going to the center in order to get material from the Inner Core that could prove very valuable.
- In order to go to the center of the Earth, we need to learn about the different layers between us and the core.
- Slide: 2
- The First Layer is the crust, this is the layer that every human lives on.
- Crust
- This is a solid layer, it can be 6 or 7 miles thick on the ocean floor. Or 25 miles thick on land. Here you can see that the crust is broken into tectonic plates.
- Slide: 3
- The Second Layer is the somewhat solid Mantle.
- Mantle
- Mantle is a solid that moves like a liquid. It is also the thickest layer and makes up for almost all of Earth's mass.
- Slide: 4
- Outer Core
- The Third Layer is the Outer Core, it is a liquid.
- This part is 1,400 miles thick, it has the pressure of the mantle and crust, and is over 7,000 degrees Fahrenheit.
- Slide: 5
- Inner Core
- The Fourth and Final Layer is the Inner Layer, it is a solid.
- This part is just under 1000 miles, it has lots of pressure due to the many layers above it and is even hotter than the sun.
- Slide: 6
- Thanks for helping us learn about layers of the Earth.
- Wish us luck on our adventure!
- Slide: 0
- These plates cause earthquakes.
- The hot rock in the mantle has convection currents where hot rock rises from the core and sinks when it is cooler near the crust, taking place of one another.
- The outer core's convection currents create Earth's magnetic field.
- Even though the inner core is hotter than the outer is is a liquid because the pressure and density are so high.
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