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e-Journal

Life in the Deep (pp. 78–79)


Step 1. Questions

Living things deep in the ocean can survive without sunlight. The producers in this ecosystem live on chemicals. They release energy by a process called chemosynthesis. However, most living things on Earth ultimately depend on energy from sunlight to live. These living things include you!

Write a report about how sunlight helps support your life. Begin by researching how sunlight provides you with heat, food, and oxygen. Here are some questions that will guide your research:
  • How does energy from the Sun help keep Earth warm enough for you to live?
  • How does the energy in the food you eat travel from the Sun to you?
  • Where does the oxygen you need to live come from?
  • Can you think of any other ways sunlight is important to you?
Are you ready? Begin by visiting the Web sites listed in Step 2. Look for answers to the questions above, and write down what you learned in the note-taking boxes.

With teacher supervision, you may use search engines to research other Web sites. You also can research the importance of sunlight to living things in the library. When you are ready, follow Steps 3 and 4 to write your report.



Step 2. Research

Research answers to the questions you were asked in Step 1. Visit these Web sites. Take notes about them on this page, too!


Toolbox Tip: Click here to learn how to tell whether a Web site is reliable.


The Greenhouse Effect
Read this page to learn about how Earth's atmosphere traps energy from the Sun and helps keep us warm. Click on each of the underlined blue words to get a definition of the word. This page is part of a much larger site for kids created by the Environmental Protection Agency.
Take Notes:



Introduction to Food Chains
This page is from the Australian Academy of Science. Read the page carefully to find out where the energy in most food chains comes from. Use the food and energy pyramid at the bottom of the page to trace how energy moves from one living thing to another. Where would you fit into the pyramid?
Take Notes:



Photosynthesis
This Web site explains photosynthesis and its importance to animals and plants. Look for information about what products of photosynthesis animals get from plants. This article is from Biology4Kids, a private educational Web site.
Take Notes:



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