Phytoplankton get energy from the Sea gulls eat auklets and sand lances. sun and turn it into sugar through photosynthesis. Zooplankton eat phytoplankton. Sea lances eat zooplankton. Salmon eat zooplankton. Octopuses eat zooplankton. Puffins eat sand lances, octopuses, and salmon. Auklets eat zooplankton. Spin A Food Web Puzzle Materials: Colored pencils or pens 2 blank pieces of paper Antarctic animals handout Trophic levels worksheet Procedure: 1. Cut apart the pictures of organisms. 2. Read about what each organism eats. 3. Arrange the pictures on your paper so that they form a food web. Remember, this is a puzzle. It may take you a few tries to get the arrangement just right. Also keep in mind that there is more than one way to arrange this food web. 4. Draw arrows (in pencil!) from each organism to the organisms that eat it. The arrows show the direction that energy flows in the ecosystem. 5. When you are happy with your food web, paste the pictures to your paper and go over the arrows with colored pencils or pens. 6. Draw the sun and add an arrow from the sun to the organisms that get their energy from the sun. 7. Use your completed food web to fill out your trophic levels worksheet. 8. Color your completed food web. Trophic Levels Name the level (producer, primary consumer, etc.) List the organisms in each level Name the level (producer, primary consumer, etc.) List the organisms in each level. Fourth Third Second First Trophic Levels Fourth Third Second First Trophic Levels Name the level (producer, primary consumer, etc.) List the organisms in each level. Fourth Third Second First Grading: Accuracy 6 points: Food web correctly uses arrows to show the relationships between organisms (1/2 point per arrow plus ½ for having them point the right direction). 4 points: Organisms are listed correctly on the tertiary levels (½ point per organism) Organization and Neatness 3 points: Organisms are arranged in a logical manner with producers on one side of the food web and tertiary consumers on the other side. Primary and secondary consumers fall somewhere in between. 2 points: Assignment is colored and completed neatly. References: Phytoplankton image from: http://www.dnr.sc.gov/marine/mrri/acechar/phytopla.htm Sea gull image from: http://des.nh.gov/organization/divisions/water/wmb/beaches/animals.htm