I have a fun week planned for you at Ellis this week. In math, we will be making a holiday gift list and calculating sales prices and tax. After you make your list, I will "check it twice". Expect some homework associated with it, and a quiz on Thursday. Here are some Howcast videos to show you how it's done:
In science, we will finish up our work concerning undersea topography. Your four choices from "Go Fish" will be due Friday. In addition, you will have a test on all we've talked about on Friday. Here is a copy of the study guide (and the diagram) that I will also give you Monday:
- I. How do scientist study the ocean floor?
- The ocean floor can be as much at 11,000 meters below the surface!
- b. ROV’s (Remotely Operated Vehicles)
- c. SONAR (Sound Nagivation And Ranging)
- d. Satellites (Geosat- once a top secret military satellite)
- II. What are the two major regions of the ocean?
- a. Continental Margin- the edge of a continent that is covered by water.
- b. Deep-ocean Basin- begins at the edge of the continental margin and extends under the deepest parts of the ocean.
- III. The Continental Shelf
- a. What is it? Starts at the shoreline and slopes gently toward open ocean (200 m)
- b. Where is it located? The Continental Margin
- IV. The Continental Slope
- a. What is it? The steepest part of the continental margin. (200 m – 4,000 m)
- b. Where is it located? Begins at the edge of the continental shelf and continues to continental rise
- V. The Continental Rise
- a. What is it? The boundary between the continental margin and the deep-ocean basin.
- b. Where is it located? The base of the continental slope
- VI. The Abyssal Plain
- a. What is it? Flat, almost level part of the ocean basin
- b. Where is it located? Between continental margins in deep ocean
- VII. The Mid-Ocean Ridge
- a. What is it? A long mountain chain that forms from moving tectonic plates
- b. Where is it located? Floor of the abyssal plain
- VIII. Rift Valley
- a. What is it? A crack in the ocean floor where magma rises and cools
- b. Where is it located? In the mid-ocean ridge
- IX. Ocean Trench
- a. What is it? Long, narrow valleys that can be up to 11,000 m deep
- b. Where is it located? Where tectonic plates are moving together (subduction)
Click on the diagram for a full-size picture.
This Friday will be a dress down day for $1.00. All the proceeds will go towards Relay For Life. See you Monday morning!