1. Food Webs Grade 9 Instructor: A. Al-Najjar

2. Instructions You will use your knowledge of food webs to create a food web based on an ecosystem of your choice. You will practice using PowerPoint and its AutoShapes feature to create a colorful food web The food web should start with sunlight and include at least one producer and at least 2 primary consumers and 2 secondary consumers. You will find pictures of each organism on the internet to be included in food web All images must be referenced with hyperlinks

3. List of ecosystems to choose from Freshwater ecosystems: Relatively small in area ~ 1.8% of earth's surface Support many species of life including fish, amphibians, insects and plants. Base of food-web is found in freshwater Plankton (small microscopic organisms) The Desert Ecosystem: Desert ecosystems are found in regions receiving an annual rainfall of less than 25cm. They occupy around 17 percent of all land on the planet. Due to very high temperature, intense sunlight and low water availability, flora and fauna are very poorly developed and scarce. Vegetation is mainly bushes, shrubs, few grasses and rarely trees. Leaves and stems of these plants are modified to conserve water. The best known desert plants are the succulents like spiny leaved cacti. Animal life includes insects, reptiles, birds, camels all of whom are adapted to the xeric (desert) conditions.

4. Food Web Example

5. Activities Click the links below! http://www.gould.edu.au/foodwebs/kids_web.htm http://www.gould.edu.au/foodwebs/kids_web.htm http://www.ecokids.ca/pub/eco_info/topics/fr ogs/chain_reaction/index.cfm http://www.ecokids.ca/pub/eco_info/topics/fr ogs/chain_reaction/index.cfm