| A | B |
|---|
| spring tide | when the moon, Earth and sun are in line |
| neap tide | when the moon and sun are at right angles to the Earth |
| tide | the daily rise and fall of the Earth's waters |
| salinity | how much salt is in the water |
| wavelength | distance between wave crests |
| crest | the top of a wave |
| trough | the bottom of a wave |
| sodium chloride | teh most abundant salt in the ocean |
| upwelling | the upward movement of cold water from the ocean's depths |
| longshore drift | the movement of sand down the beach |
| Coriolis effect | the effect on currents from the Earth's rotation |
| currents | large streams of water that flow through the ocean |
| deep current | currents cause by the water's density |
| surface current | affected mostly by winds |
| pressure | this increases teh deeper you go in the ocean |
| wave height | distance between the crest and the trough |
