| A | B |
|---|
| Salt gets into the ocean by | rain remoing salt from rocks and it washes into lakes, rivers, then the ocean |
| You can float in the Dead Sea because | there is a high salt content |
| The coldest water in the ocean is | at the bottom because it is more dense than warm water |
| Microscopic plant and animal organisms found in the ocean | plankton |
| The tallest mountain in the world is | Mauna Kea because most of it is submerged |
| Mud, slime, and decomposed shells found at the bottom of the ocean | ocean ooze |
| The Titantic wasn't covered in ooze because | ooze builds slowly only 10 cm. in 1000 years |
| High pitched sound pulses go out and pulses off objects and signals come back | how sonar works |
| The greatest pressure is found at the bottom of the ocean because | there is more water above to give greater pressure |
| A moving stream of water | a current |
| Surface currents are formed by | wind |
| Deep water currents are formed by | a difference in density (as dense water/objects sink they form these) |
| up and down movements of water | waves |
| the top of a wave | crest |
| When the moon's gravity pulls strongly on water it creates bulges in the water called | tides |
| When the sun, moon, and earth are perfectly aligned they cause | spring tides |
| Items in the ocean we can use | salt, potassium, iodine, oil, lobsters, salmon, diamonds, gold, and fresh water. |
| Ocean water pollutants | oil, chemicals, garbage, pesticides, and oil spills |
| Problems that oil spills cause | Contamination of the water, hurt or kill fish, birds, or sea animals |
| Oil spills are difficult to clean because | the wind and currents move the oil around and it contaminates other areas |
| the flat area at the top of land under the ocean | continental shelf |
| the slanted area of land under the ocean | slope |
| the flat part of the ocean bottom | abyssal plain |
| the area between the slope and continental shelf | edge |
| Luis Alvarez's evidence for his theory on the extinction of dinosaurs | iridium is found in the oceans all over the world and also in meteors, and a crater was found in the Gulf of Mexico |
