What Is an Ecosystem?

Think of all the things you need to live. You need air to breathe. You need water to drink. You need food to eat.

All living things get what they need from their ecosystems. An ecosystem is a group of living and nonliving things that work together.

Some ecosystems are small. A pond is an ecosystem. It can have fish, frogs, and plants. The water, rocks, and soil are part of the ecosystem.

A pond is a small ecosystem.

frog