Life Science News

ecosystems

energy flow

An ecosystem is all the living and nonliving things and the ways they interact.

All the living things in an ecosystem need food, water, temperature and space to grow. The energy they need comes from the sun.

Animals get energy by eating plants or other animals.

Decomposers

Food chains and food webs

In a food chain, living things transfer energy by eating and being eaten.

A food web is a system of overlapping food chains.

All living things are connected and depend on each other in order to survive.