Plate Tectonics
Across
- 5. the idea that the continents are slowly drifting across the Earth.
- 6. the name of the supercontinent made up of all of the current continents, before they separated.
Down
- 1. ridges formed from the separation of oceanic plates and the magma seeping between them.
- 2. the last name of the scientist who proposed the idea of Pangea and continental drift.
- 3. Wegener used these as evidence for Pangea. He chose samples that could not fly or swim great distances.
- 4. samples of seafloor rock got _________ as you approach a mid ocean ridge.