Warm Up 11-4-141. Name the 5 different ocean

basins on Earth2. Explain how sonar works3. What do we use sonar for?4. How are submersibles different

from submarines?

Agenda-Notes Chp 19-2-Play-Doh model-Sardine population questions

Homework-Sardine population-Nov 7 - Progress report submitted

1. Continental shelf2. Continental slope3. Submarine canyon4. Continental rise5. Deep ocean trench6. Abyssal plain7. Seamounts 8. Guyots9. Mid-Ocean Ridge

Chp 19-2Ocean Floor Features

Continental margincontinental rise

Ocean Floor Features• Continental Margin: zone between the

shoreline and the deep-ocean bottom

1. Continental Shelf: gently sloping surface extending from the shoreline

2. Continental Slope: Edge of the continental shelf, usually steep (boundary between continental crust and oceanic crust)

Ocean Floor Features

3. Submarine Canyons: steep valleys cut into the continental slope.–Created by turbidity currents

Ocean Floor Features• Turbidity current: An underwater landslide.

Caused by underwater earthquakes

Ocean Floor Features4. Continental Rise: gently sloping surface at the base of the continental slope.

5. Deep Ocean Trench: creases in the ocean floor that form at subduction zones

6. Abyssal Plain: deep, flat areas (not much goes on here)

7. Seamounts: submerged volcanoes that form at hot spots

Ocean Floor Features

8. Guyot: seamount with a flat top

9. Mid-Ocean Ridge: cluster of underwater mountains that have developed on newly formed ocean crust–Where seafloor spreading occurs

Features of the Ocean FloorUsing the Play-Doh, create the

ocean floor and include the 6 features below. Show me your model when done.

1. Continental shelf2. Continental slope3. Submarine canyon4. Continental rise5. Deep ocean trench6. Abyssal plain

Sardine Population

Sardine Population

Sardine Population QuestionsCopy down the questions and answer

1. What natural events might affect the sardine population?

2. How did the fishing industry affected human population in Monterey?

3. What is a cause of the decline/collapse of the sardine industry?

4. What factors influence the growth of the sardine fishing industry?

http://grist.org/news/sardines-have-nearly-disappeared-off-west-coast/