Parrett WMS-Unit 6 Earth Layers, Rock Cycle, and Fossils
Review of earth layers, rock cycle and fossils
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Topics of this game:
- The actual numeric age of rocks
- Determining rock age using other rocks nearby
- Oldest rock layers are on the bottom
- Forms when small pieces of rocs are compacted and cemented together
- Forms when magma cools and hardens
- form inside Earth from extreme heat and pressure
- Brittle and rigid outer layer
- Thick middle layer that is solid and contain convection currents
- Liquid layer of iron and nickel, helps produce Earth's magnetic field
- Solid layer of iron and nickel
- Made of crust/upper mantle, divided into tectonic plates
- Rocks are soft enough to flow allowing tectonic plates to move
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