Science topic

Grade 5 ecosystems and food webs

Producers, consumers and decomposers, and how a change ripples through a food web. Here is what we have for Grade 5.

Lessons

Food Webs: Who Eats Whom?

Where a plant's food comes from, what happens when the wolves disappear, who cleans up, and how much life hides under a log. Four lessons on how energy and matter move through living things.

Online practice

Where plant matter comes from
Food webs and energy flow
Decomposers and cycles of matter

Free tools

Predator and Prey

Run a simulated meadow of hares and lynx. Change birth and hunting rates and watch the two populations rise and fall on a live graph.

Food Web Builder

Build a food web for a forest, pond or ocean by drawing arrows from food to eater. Then remove one species and see which others are affected.

Ecosystems and food webs in other grades:Grade 3 Grade 6 Grade 7 Grade 8 All grades