| A | B |
|---|
| Pangaea | super continent/ all land |
| convection current | rising, cooling, sinking of fluid |
| drift | slow movement of plates |
| Wegener | started drift theory |
| fossils and rock types | clues of drift |
| seafloor spreading | theory of magma changes in ocean |
| age of rock and magnetic fields | clues of spreading |
| techtonics | crust is broken and moves |
| lithosphere | part of crust and upper mantle |
| fault | boundary of 2 or more plates |
| asthenosphere | upper mantal |
| divergent | plates move apart |
| plates | sections of earth's crust |
| magma | molten rock under surface of earth |
| oceanic plate | more dense, thinner plate under water |
| strike-slip | plates slide by one another |
| convergent | plates move toward one another |
| subduction | more dense plate moves under another |
| Hess | started theory of seafloor spreading |
| inner core | solid layer of center of earth |
| outer core | innermost liquid layer of earth |
| control | comparison in an experiment |
| independent variable | what you change in an experiment |
| dependent variable | the measured outcome of an experiment |
| constant | doesn't change |
