Science
Energy Flow in an Ecosystem: Food Chains and the 10% Rule
Students classify organisms as producers or consumers, calculate energy passed along a food chain using the 10% rule and predict the effects of removing one species.
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Science
Food Webs and the 10% Rule: Following the Energy
Students read about energy flow, learn the vocabulary of food chains, and use the 10% rule to calculate how much energy reaches each level of an energy pyramid.
Science
Pond Food Web Detective: Who Eats Whom?
Students use a feeding table for a pond community to sort organisms into roles, trace food chains and predict what happens when one species disappears.