1. What Happens if…?

2. We need to know the impact on the food chains: Example: What happens if we cut down the trees? 1._____________ 2._____________ 3._____________

3. Look at the food web and answer the following questions: 1.The farmer has put poisonous chemicals on his plants. The number of snails has reduced by half. What effects will this have on the food web? ________________________________________ ________________________________________ 2.A larger number of eagles have survived this year than expected. What effects will this have on the food web? ________________________________________ ________________________________________ 3.A disease has killed almost all of the caterpillars. What effects will this have on the food web? ________________________________________ ________________________________________