McGraw-Hill Science 2005

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Macmillan/McGraw-Hill Science Grade 3
Grade 3
e-Journal

Food Chains and Food Webs

Step 1. Questions

What did you eat last? Did you eat an apple or banana? Maybe you ate meat or fish. Whatever you ate, you were part of a food chain. A food chain is a series of organisms that depend on one another for food.

All organisms are part of food chains.

Here are some questions about food chains. Read them, and then research the answers.
  • How are all food chains alike? How are they different?
  • What kinds of food chains are in an ocean or lake? What kinds are on land?
  • What is the source of energy for all food chains?
  • What might happen if one part of a food chain disappeared?
  • What other questions do you have about food chains?


Step 2. Research

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

Food Chains and Web
This site will help you understand the difference between a food chain and a food web. You can use your new-found knowledge to create a possible food web with animals, insects, and plants.
Take Notes:



PlanetPals
Visit the PlanetPals Web site for a colorful graphic chart of the food chain.
Take Notes:



What’s It Like Where You Live?
Here is a very large site that is all about places to live on Earth. Click grasslands, rainforest, taiga, or another place. Learn what the plants and animals there are like, and what the animals eat
Take Notes:



Go to Step 3 or Save My Notes


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