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Food Web Foldable Instructions.
1. Orient your folding paper so that the 8 ½ ends are at the top and bottom. Make a ½ inch fold along the length
of the paper on the left side. Make a 1 inch fold along the length of the paper on the right side. Unfold both
folds. Fold the entire paper in half (hamburger fold) and in half again so that you have folded the paper into 4
parts.
Decomposers
Primary
producers
Primary
consumers
Secondary
consumers
Tertiary
consumers
2. Unfold the paper and label the folds as follows:
a. Left ½ inch folds (starting from the bottom): producers, primary consumers, secondary consumers,
tertiary consumers
b. Label the right 1 inch fold as decomposers. See the example below.
3. Using the Species list on the back of this page, select at least 10 organisms to put on your web. Choose at least
3 producers. You must choose organisms to fit in each level (primary, secondary and tertiary consumer). You
may use plants and animals other than the ones listed, if you wish.
4. Use the folded sections to organize the trophic levels. For example, all the primary consumers would be found
on the middle folded section
5. Draw a food web showing the interrelationships between the organisms. Arrows should be drawn FROM the
organism that is consumed because that is where the energy is going.
6. Add decomposers to your food web by entering them on the right side (1 inch) fold. These organisms would
be found at each trophic level. Choose at least 2.
7. Optional: Calculate the amount of energy transferred from the first trophic level to the next. Divide the energy
in the first trophic level by 10. This is the amount of energy transferred to the second level. Calculate the final
energy (in kCal) found at the fourth trophic level (tertiary consumers *) Use 10, 000 kCal for the first trophic
level (producers). Write these numbers beside each level on your foldable.
8. Get your foldable checked by Mrs. Hinman, then glue or tape it into your notebook.
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Questions and Analysis (answer these questions under your foldable in your notebook):
1. How many food chains were represented in your food web?
2. Is there a relationship between the complexity of a food chain and its ability to survive environmental changes?
Explain.
3. What is the overall effect to a food chain if one of the levels is removed?
4. What is the role of the sun in your food web?
Species List:
Primary Producers
(photosynthetic
organisms)
Kelp
Seaweed
Moss
Carrot
Apple Tree
Elm Tree
Oak Tree
Fern
Grass
Dandelion
Wheat
Tulips
Sage
Phytoplankton
(microscopic
marine plants)
Primary
Secondary
Secondary
Tertiary consumers Decomposers
consumers
consumers
consumers
(carnivores and
(herbivores) (carnivores)
(omnivores)
omnivores)
Squirrel
Rattlesnake
Racoons
Polar Bear
Beetles
Elephant
Shark
Grizzly bear
Humans
Earth worms
Rabbit
Gecko
Apes
Eagle
Millipedes
Cow
Owl
Seagull
Orca whales
Bacteria
Sheep
Wolf
Catfish
Lion
Clams
Giraffe
Weasel
Roadrunner
Fungi
Deer
Wolf
Robin
Slugs
Turtle
Eagles
Blue Jay
Hyena
Mouse
Penguins
Raven
Crab
Minnows
Snail
Butterfly
Talapia (fish)
Zooplankton
(micrscopic
marine
animals)
** Quaternary consumers: Depending on where the organism is on the food chain, it can be a tertiary or a
quaternary consumer.
Grass seedmousesquirrelHawk in this case, the hawk is a tertiary consumer
Grass seedmousesquirrelsnakeHawk, in this case, the snake is a quaternary consumer