| A | B |
|---|
| Oceanic crust | The portion of the earth's crust that primarily contains basalt, is relatively dense, and is about 5 kilometers thick. |
| Neap tide | A time of smallest todal range due to the moon and sun being located at right angles to each other(during quarter moons) |
| Plate tectonics | A process involving the movement of large plates on the earth's mantle |
| Mid-ocean ridge | A continuous chain of underwater volcanic mountains encompassing the earth |
| Seafloor spreading | The process that creates nes seafloor as an area moves away from the mid-ocean ridges |
| Subduction | The downward movement of one plate into the earth's mantle when to plates collide |
| Continental shelf | The gently sloped, shallow section of the edge of a continent, extending from the shore to the point where the slop gets steeper |
| Continental slope | The steeper section of a continental edge, extending seaward from the continental shelf |
| Continental rise | The gently sloping area at the base of the continental slope |
| Specific heat | The amount of energy required to rasie the temperature of one gram of a substance by 1.00 C |
| Salinity | The total amount of salt dissolved in a solvent |
| Coriolis effect | The way in which the rotation of the earth bends the path of winds and resulting sea currents |
| Gyres | Large, mostly circular systems of surface currents driven by the wind |
| Spring tide | A time of largest tidal range due to the gravitational pull of the aligned sun and moon(during full moon and new moons) |
| Continental crust | The portion of the earth's crust that primarily contains granite, is less dense then oceanic crust, and is 20 to 50 kilometers thick |
