Part 1 - Energy Flow Through Organisms in Ecosystems
1. Go to http://www.zephyrus.co.uk/foodpuzzlechain.html and complete the food chain “quiz.”
Make sure to answer these questions as you go. Read all of each page in order to find the
answers to the follow. [In other words, all of these questions can be answered by the
information found as you work through this quiz.] Click “MORE” to go on to the next
question.
a. Green plants make their own food, so they are called _______________________.
b. What is a predator?
c. What is an example of a producer that fish could eat?
d. What is the general term for organisms that live in soil and fallen leaves on the forest floor?
e. What is one example of this type of organism?
2. Go to http://www.sciencebob.com/lab/q-web-chain.html and enter the following question in
the “SEARCH” box, then answer: “What is the difference between a food chain and a food
web?” Explain.
3. Go to http://www.crickweb.co.uk/assets/resources/flash.php?&file=foodchains to answer
these questions. This site will lead to a “title” page. Scroll down and click on the green box
labeled “Food Chains”. After reading through the introductory page that follows, click on the
“next” button in the upper right-hand corner.
a. Select “River” Habitat: Write-out this food chain.
b. Select “Woodland” Habitat: Write-out this food chain.
c. Select “Seashore” Habitat: Write-out this food chain.
5. Go to http://www.vtaide.com/png/foodchains.htm to answer these questions.
a. In any ecosystem, there are fewer carnivores than herbivores. Why? [Your answer needs to
specifically include a description of how energy is transferred.]
b. Why would it be extremely rare to find a food chain with nine links in it?
c. Toward the bottom, find the “Create a food web” link and click on it. Follow the directions to
create a food CHAIN with at least 5 trophic levels with the sun being #1. Draw your food
chain on your paper.
6. http://kids.britannica.com/comptons/art-90132/The-amount-of-energy-at-each-trophic-level-
decreases-as
a. As energy passes to the next trophic level, as much as ______ % of the useful energy is LOST.
b. Think for yourself, because of this, would it be beneficial for all humans if we were to reduce
the amount of meat in our diets? WHY or WHY NOT?
7. Go to http://www.seafriends.org.nz/enviro/soil/depend.htm and browse the whole website for
answers to the following:
a. Explain HYDROPONICS?
b. What continues to grow, causing great reason for concern over the current and future loss of
soil?
c. Find the chart, “Health problems...”
c1. What percentage of cancers are believed to be preventable through diet and exercise?
c2. We can prevent 17 - 25% of coronary heart disease by ___ ___ ___ and ____ _____.
Unit 6 - Ecology WebQuest - Answer on your own paper.
