| A | B |
|---|
| Wave | The movment of energy through a body of water |
| Crest | The highest part of a wave |
| Trough | The lowest part of a wave |
| Wavelength | Horizontal distance between crests |
| Frequency | The number of waves that pass a point in a certain amount of time |
| Breakers | Waves that crash onto shore |
| Swells | Long low waves in deeper water |
| Tsunamis | Type of wave caused by earthquakes beneath the ocean floor |
| Tides | The daily rise and fall of the ocean on coastlines |
| Spring Tide | A tide with the greatest difference between high and low tide |
| Neap Tide | A tide with the least difference between high and low tide |
| Gravity | The attraction between two masses |
| Salinity | The amount of salt dissolved in water |
| Soduium Chloride | The chemical name for table salt |
| Density | The amount of mass in a given space |
| Carbon Dioxide | Gas used by algae for photosynthesis and by other organims to make shells |
| Oxygen | A gas necessary for organism to obtain energy from their food |
| Photosynthesis | The process by which plants use water, carbon dioxide and solar energy to produce food |
| Submersible | An underwater vehicle built to withstand high pressure |
| Scuba | Self contained underwater breathing apparatus |
