Students learn about different kinds of water bugs including several live examples. The importance of water bugs in the food chain is explained as well as how pollution effects them and how they can be used as pollution indicators. Students are show living water bugs and asked to identify them from a chart.

• Why should we care about water bugs?
• Birds, fish, frogs and turtles all eat  water bugs
• Water bugs eat moss, plants, small worms, each other and other disgusting things in the water.
• Some water bugs have camouflage  and can look like moss, sticks or rocks.
• Water bugs breath oxygen just like us. Some have lungs and some have gills. One even takes a bubble of air underwater so it can breathe.
• Is it easier to breathe clean air or dirty air?
• It's easier for water bugs that breathe in the water to breathe in clean water.
• Water bugs live in the edges of the muck, on the surface of the water, on the rocks or other similar places, depending on the bug.