NAME_______________________________________________DATE________________PERIOD_____
FOOD CHAINS AND FOOD WEBS
Using the information from the following website and your own knowledge, complete the activities below to
further your understanding of food chains, food webs, and the roles that organisms play within an ecosystem.
1. Open the computer’s internet browser and type in the following URL.
http://www.vtaide.com/png/foodchains.htm
PART I
Please
READ what is on the webpage in order to answer the following question:
?
1. What are two reasons why living things need energy?
A. ____________________________
B. ____________________________
?
2. From where do organisms get energy?
?
3. What is a food chain?
?
4. What is the difference between a producer and consumer?
?
5. What is the difference between a secondary and tertiary consumer?
?
6. Why are there more herbivores than carnivores?
?
7. The further along a food chain you go, the _______ amount of energy is available.
?
8. Why do most food chains have no more than 4 or 5 links?
?
9. What is a food web?
Read the paragraph about how “A change in the size of one population in a food chain will affect other
populations” and answer the following question.
?
10. How does the shortage of zebras affect an ecosystem?
PART II
1. Locate the 4 possible food chains/webs (Desert, Coniferous Forest, Deciduous Forest, Temperate
Forest) towards the bottom of the page.
2. Click on ONE of the biomes to answer the following questions.
3. Take a look at the food chains/web in order to answer the following questions.
?
11. What organisms make up the “producers” of your food chain/web?
?
12. Name the organisms in your food chains/web that are:
Herbivores:
Carnivores:
?
13. Who are the tertiary consumers in this food chains/web?
PART III
1. Back on the main webpage, click on “creating a possible food web”
2. Use the mouse to construct a food web that contains at least 1 producer and 6 consumers.
3. When you are done, draw your food web below (you do not have to draw pictures, just list the
names of the animals).
4. Make sure your arrows are drawn correctly.
?
14. What does the direction of the arrow represent?
PART IV
1. Scroll to the bottom of the main web page and click on “Food Chains MCQ”.
2. Answer the multiple choice questions by clicking on the button of the correct answer.
3. A Box will pop up after every answer to let you know if you answered it correctly.
?
15. How did you do on the mini quiz? (If you got some answers wrong; list how many?)