Continental Drift
Terms
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- Trench
- A V-shaped valley on the ocean floor where old ocean floor is subducted
- Pangaea
- The theory that the earth was once a single landmass
- Mid-ocean ridge
- The youngest rocks on the ocean floor are found in the center of the..
- Fossils
- the preserved remains of ancient organisms
- Psychrometer
- An instrument used to measure relative humidity
- Ocean Floor Spreading
- The process when the ocean floor moves away on either side of a midocean ridge, lava wells up and hardens forming a new ocean floor
- Glossopteris
- an organism whose fossils provide evidence for continental drift
- Crust
- The topmost solid part of the Earth
- Subduction
- The process in which the Earth's crust plunges back into the Earth is know as
- Barometer
- An instrument used to measure air pressure
- Continental Drift
- The theory that the Earth once had a single landmass that broke up into large pieces