Food Webs and Ecological Pyramids How does knowing about food webs and ecological pyramids help us to understand ecosystems?

 Food Web Cards  The cards you made  The cards I made  20 Interact! Cards  Food Web Connections Game Directions (bright yellow)  Play in groups of 4  You will play for 60 minutes Food Web Connections Game

 Is it important to have producers in your web?  If you had a choice between choosing a card to place on a level where you already have many cards and a level where you only have one card, which should you choose? Why?  Is it better to extend you web to higher levels or make sure that you have enough cards at lower levels to support the ones above it? Why? Questions to think about while playing the game

 Do you think the food web members needed producers (plants) to be in the game? Why? Is this true of a real ecosystem?  Do you think the game could be played without decomposers? Why? Would that work in a real ecosystem?  Can you think of a way that mice and plants are connected in a food web? What about earthworms and owls? Reflection Questions (to turn in: answer on a separate sheet of paper)

 Choose three of the four Pacific Northwest biomes.  In your composition books, respond to the directions at the top of each sheet. Biome Eco-sheets

 Ecology vocabulary (knowledge check 1)  Soils and its formation (knowledge check 2)  Biosphere cycles (knowledge check 2)  Food webs and the three ecological pyramids (game, biome eco sheets, and text) Knowledge Check of everything up to now : Next class