Thursday and Friday, Sept 15 & 16

Thursday we had our quiz about food webs. Check it out on Google docs: Eco Quiz #1. We then went over some of the details in the reading and focused on how top level carnivores are fewest in number and at the greatest risk when there is a disruption to the food web. We learned about DDT use in the last century and how it increased in concentration as it moved up the food chain. This had the biggest impact on the osprey and pelicans and almost pushed them to extinction.
Friday we worked on modifying the food web game to make it better. Here is the worksheet that we used to record our changes and our evaluations of this new version: Food Web Game: Make it Better.