1. SOL #11
Oceans

2. Parts of the Ocean Floor
Continental shelves
Continental slopes
Abyssal plains
Seamounts

4. Seafloor Spreading Occurs at mid-ocean ridge
Related to plate tectonics
Old seafloor is closer to shore—young seafloor is closer to the ridge

5. Waves Surface waves are caused by wind
Friction near the shore slows waves down
Crest
Highest part of wave
Trough
lowest part of wave

6. Tides Daily rise/fall of water level
Caused by gravitational pull of moon and sun
Spring tides=higher than normal
Neap tides=lower than normal

8. Upwelling
Cold, nutrient rich water from deep ocean comes up to surface
Creates biological activity
Marine organisms feed off of nutrients
Good fishing grounds!

9. Currents Large systems in ocean that move water in patterns
Created by differences in temp and salinity
Gulf Stream
Current that runs along Eastern USA
Warm water moves toward the poles
Cold water moves toward the equator
Convection

11. Oceans & Climates Stored ocean heat drives much of Earth’s weather
Climate near ocean milder than interior
Ocean is largest reservoir of heat on surface

12. Resources Source of food and mineral deposits Recreation
Oil made from dead marine organisms and frequently found under seafloor
Recreation
Transportation

13. Human Impact Pollution Over-fishing Chemicals from runoff
Sedimentation
Waste disposal
Over-fishing
Depleting seafood
Fish farming has been a way to help replenish oceans

14. Estuary Nature’s Nursery
Fresh & salt water mix=salinity varies making biological activity high
Chesapeake Bay