| A | B |
|---|
| What are the 3 main layers of the Earth? | Crust, Mantle, Core |
| What is the outer most layer of the Earth? | Crust |
| What crust do we live on? | Continental Crust |
| What is the denser crust? | Oceanic Crust (that's why it is lower!) |
| What layer of the Earth has the least dense material? | Crust (continental crust) |
| Which crust is thicker? | Continetal Crust |
| Have we ever drilled through the crust? | No! |
| What layer is between the crust and core? | Mantle (liquid rock) |
| What main element makes up most of the cores? | Iron |
| What do we call the crust and the upper part of the mantle? | Lithosphere |
| What is the gooey, plastic layer the lithosphere floats on? | Asthenosphere |
| What kind of iron is in the outer core? | Liquid Iron |
| What do we called the slabs of lithosphere that float on the asthenosphere? | Tectonic Plates |
| How can we tell what it is in the center of the Earth? | By studying earthquake (seismic) waves that go through (or don't go through) the Earth |
