Lesson 5How does energy

move in ecosystems?

producers

• Organisms that make their own food for energy

• Ex: plants, protists

consumers• Organisms that cannot make

their own food• Eat other organisms

All animals are consumers.

Producers and Consumers video clip

herbivore• consumer that eats only plants

carnivore• consumer that eats only animals

omnivore• consumer that eats both plants

& animals

Herbivores, Carnivores, and Omnivores

decomposer• eat waste or dead organisms

Decomposers video clip

Energy moves to all organisms through food chains or food webs.

food chain• Always begins w/ sunlight• Transfers energy in 1 direction

by eating & being eaten

phytoplankton

food web• combines many food chains

Click the following button to complete an activity which

demonstrates how a food web works.

http://www.harcourtschool.com/activity/food/food_menu.html

energy energy pyramidpyramid

• diagram that diagram that shows shows amounts of amounts of energy that energy that flow thru. flow thru. each level of a each level of a food chainfood chain

• most energy most energy turns into turns into body heat body heat

http://www.harcourtschool.com/activity/science_up_close/314/deploy/interface.html

Pyramids of Energy and Numbers video