| A | B |
|---|
| crust | thin, rocky, outer layer |
| mantle | middle layer of the Earth, greatest part of the Earth |
| core | center part of the Earth |
| this is what pressure and temperature do as you descend farther toward the center of the Earth | increase |
| composition of crust | granite and basalt |
| composition of mantle | Iron (Fe) and Magnesium (Mg) |
| composition of outer and inner core | Iron (Fe) and Nickel (Ni) |
| lithosphere | crust and upper part of mantle that is divided into large tectonic plates |
| physical properties of lithosphere | rigid, brittle |
| asthenosphere | upper part of mantle directly beneath lithosphere |
| physical properties of the asthenosphere | fluid, a solid that flows - plasticity |
| mesosphere | lowest part of mantle near outer core |
| physical properties of mesosphere | rigid, hot, solid |
| outer core | beneath the mantle and mesosphere |
| physical properties of outer core | liquid, molten metal due to pressure of Earth above it |
| inner core | very center of the Earth |
| physical properties of inner core | intense pressure causes metal to be solid |
| cause of Earth's magnetic field | the dense iron in the core creates the magnetic field around the Earth |
| sial layer | made of granite - like rock; less dense; continental crust |
| sima layer | made of basalt-like rock; oceanic crust; more dense |
