- Pond: A body of still water. Not very many trees. Algae, minnows, frogs, turtles, ducks, and dragonflies.
- Swamp: A wetland with standing water. Many trees. Fish, turtles, snakes, alligators, and frogs.
- Marsh: A wetland with shallow water. Lots of grasses and reeds. Frogs, ducks, herons, and muskrats.
- Stream: A small, flowing body of water. Flows into a river. Trout, minnows, crayfish, and insects.
- River: A large, flowing body of water. Flows into the ocean. Fish, otters, beavers, and birds.
- Ocean: The largest body of water on Earth. Salty water with waves and tides. Sharks, whales, dolphins, coral, and plankton.
Parent Tip: Review the logic above to help your child master the concept of water ecosystems worksheet.