Earth's Interior |
Convection Currents and the Mantle |
Drifting Continents |
Sea-Floor Spreading |
The Theory Of Plate Tectonics |
Science Process Skills |
200 |
200 |
200 |
200 |
200 |
200 |
400 |
400 |
400 |
400 |
400 |
400 |
600 |
600 |
600 |
600 |
600 |
600 |
800 |
800 |
800 |
800 |
800 |
800 |
1000 |
1000 |
1000 |
1000 |
1000 |
1000 |