Write a hypothesis: Which food items contain algae?
Select 5 food labels. Read the ingredients to identify which algae derivative it contains.
Record the foods in your data table and check the algae derivative each food contains. *Some food will contain more than one.
CHALLENGE: Algae are also used in some medicines, cosmetics, paint, and shampoo. Find labels from other items that contain algae derivatives. Research which medicines contain algae derivatives. Share your findings with the class.
Station 3: There are Algae in Your House!
XPLORE, Part 2
E Station 4: Web of Life
Log onto the following website. Read the fact sheet on marine food webs. The use the internet to explore diagrams and photos of the organisms that make up a marine food web.
http://seagrant.gso.uri.edu/factsheets/foodweb.html The following website has more detailed information, pictures, and links of various organisms in a marine food web.
Make a sketch of a simple marine food web. Label your diagram.
Use coloring pencils to color your diagram.
If you have time, you may go to the interactive ocean food web found at the following website.
Fold a piece of black construction paper in half. Draw a fish on the black construction paper. With the paper still folded, cut out the fish so you have 2 two fish. Punch holes on one of the fish.
Cut out 2 strips of paper to attach to your fish in order to suspend them from the inside of the lid one at a time.
First, suspend the fish WITHOUT holes from the lid of the box. Replace the lid. Look through the peephole to observe the fish. Record what you see.
Then, suspend the fish WITH holes from the lid of the box. Replace the lid. Look through the peephole to observe the fish. Record what you see.
Answer the analysis questions.
If you have time, look at the following website at some “beasts” that live in the dark ocean.
http://www.pbs.org/wgbh/nova/abyss/life/bestiary.html The following has more information on bioluminescence.