RAP

1. _____ 2 tectonic plates collide

2. _____ 2 tectonic plates slide past each other

3. _____ 2 tectonic plates move away from each other

Key Questions1. What are the names and locations of the major

oceans?

2. What is salinity?

3. What factors effects the salinity of the ocean?4. Where does the salt in the ocean come from? 5. What is the most important function of the

ocean?6. How does the salinity of the ocean stay

balanced when gallons of freshwater is poured into the ocean each day?

1. What are the names and locations of the major oceans?

• Pacific-largest• Atlantic• Indian• Southern (Antarctic)

• Arctic-smallest

2. What is salinity?

• 2. Salinity is the amount of salt in the ocean 35 gram per kilogram of water.

3. What factors affect salinity?

• CLIMATE- hot, dry is saltier• WATER MOVEMENT-no circulation saltier

ex sea, gulf, bay

4. Where does the salt in the ocean come from?• Minerals washed from rivers and streams• Waves that pound on rocks• Erupting volcanoes• Hot springs

5. What is the most important function of the ocean?

5. The most important function of the ocean

giving off water vapor into the atmosphere

Maintain Earth’s heat balance

6. How does the salinity of the ocean stay balanced when gallons of freshwater is

poured into the ocean each day?

• 6. The salinity stays balanced water is continuously evaporated back out of the ocean into the atmosphere