Only One Ocean Unit.
You will complete all parts of this unit by Friday. Be sure to complete the following items.
1. Read the written assignments
2. Review 2 or three websites
3. Construct and complete both parts of your booklet.
Ocean Floor Booklet
Take a good look at the picture below. There are a lot of features that we have studied this year. Look below the picture and you will find the names of some of the features. Read about each feature and make a page in your booklet about that feature. Draw a picture and write down some information about it. You also need to make a page discussing each of the oceans. There are also other terns and features listed below the picture. Your booklet must contain a page telling which references you used. Somewhere in your booklet, there must be a large picture showing all of the features. You may use the one below or one of the pictures found in another book or on another website.
Use the following resources to make an Ocean Fact Book!
You must READ the three reading assignments. You will need to visit several of the websites to create a good project.
| Read pages 207-209 in the ScienceSaurus book. | Read pages 90-93 in the Coach Book. |
| Read pages 65-67 in the Georgia CRCT Book | Read pages 291-295 in Science Workbook |
| Ocean Floor Topography | |
| The Ocean Basins | Brain Pop Ocean Floor Features |
Make a section of your booklet telling about the: 1. World ocean 2. Pacific Ocean 3. Atlantic Ocean 4. Indian Ocean 5. Southern Ocean 6. Arctic Ocean 7. Sonar 8. Sediment -read "Some Facts about sediment". 9. Make a graph comparing the sizes of the oceans. |
Here is a list of the features and oceans that you need to include in your booklet. The list below is in order of the picture. You may put them in any order that suits you. A. continental slope B. seamount C. abyssal plain D. Mid-Ocean Ridge/Rift Valley E. volcanic island/island F. Continental shelf G. trenches or deep sea trenches H. Guyot |
Some facts about sediment- The ocean floor is covered by an average of 550 feet of sediment, but the sediment can be more than 4 miles thick in the Argentine Basin in the South Atlantic. Some regions, particularly the central parts of the midocean ridges where new crust is formed, have little, if any, sediment on them. The sediments are studied by dredging and by deep-sea exploration projects such as the Ocean Drilling Program, which obtains core samples of seafloor sediment from all the world’s oceans.
The sediments are made mostly of rock particles and organic remains(dead critters and their shells and bones); the compositions depend on depth, distance from continents, and local variants such as submarine volcanoes or high biological productivity. Clay minerals, which are formed by the weathering of continental rocks and carried out to sea by rivers and wind, are usually abundant in the deep sea. Thick deposits of such detrital material are often found near mouths of rivers and on continental shelves; fine particles of clay are spread through the ocean and accumulate slowly on the deep-ocean floor. Imagine how much sediment must be dumped into the ocean everyday by the mighty Amazon River.
