Most of our planet is covered with water. Indeed, 71% of the planet's surface is covered by the ocean. We could say that the earth is covered by one vast ocean that stretches from the North Pole to the South Pole and goes all the way around the globe. But, how did all this water come to be on earth and what is in it? Use the resources on this student esheet to explore the oceans and the water cycle in more depth.


The Water Cycle
To bring the water cycle into the bigger picture, read: Looking at the Sea: The Water Cycle. Use what you learn here to draw your own diagram of the water cycle, similar to the one at this website. You also should write a paragraph in your own words to describe the water cycle.

Fact Sheet on Oceans
Now go to Looking at the Sea. Use the information from this page to help you develop a fact sheet on oceans.

Getting to Know the Oceans
To see an interactive map of the world's oceans, go to Looking at the Sea:Ocean Profiles. Use this map to help you draw a very basic flat map of earth in your journal. You can shade in the land and label the oceans.

Click on the different areas of the online map to read about the oceans. Use this information to create four ocean profiles in your journal. Your profile should include ocean depths. You can translate the depths into miles by dividing the number of feet by 5,280.

Are Oceans Deep or Shallow?
To help you answer this question, go to Welcome to our Earth. You can use the diagram on this page to help you draw your own diagram of the earth split open. Be sure to label the different layers: crust, mantle, outer core, and core. You also should label how many miles thick each layer is.

What Does the Ocean Floor Look Like?
You can read about the ocean floor and see a diagram of it at Looking at the Sea: Physical Features of the Ocean. You can use this diagram to help you draw your own ocean floor across the bottom of at least two pages in your journal. In the upper part of the pages, you can write about some of the land features and describe them.

Currents in the Oceans
Do you know what currents are? To learn more about them, go to Water on the Move to read the first page. After reading this page, click on Current Events to read a little more and see the patterns of currents.

This esheet is a part of the Oceans lesson.

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