Science Test
Terms
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- El Nino
- A periodic change in oceanic and atmosphere conditions causing unusualy warm surface water.
- Extrusive
- A type of igneous rock that cools quickly and has small crystals.
- Intrusive
- A type of igneous rock that cools slowly and has large crystals.
- Coriolis Affect
- The way the earth's rotation affects the wind and ocean currents.
- Lava
- The magma that reaches the surface of the earth.
- Sea Mount
- An undersea volcanic mountain found on the ocean floor
- Upwelling
- The movement of cold deep ocean water to the ocean's surface.
- Deep Ocean Current
- A stream of water that flows deep beneath the ocean's surface.
- Subduction
- The process by which one lithospheric plate is forced under another.
- Polarity
- They found alternating strips of igneous rock. Every other stripe had most of it's magnatite facing north. This is known as normal polarity.
- Magnatite
- A type of mineral that always points toward the magnetic north.