How Mussels Affect Water Quality
You’ve learned that mussels contribute to water quality in freshwater environments. But how do they do it? Freshwater mussels work to reduce the amount and strength of pollutants in the water by sucking water in and out to remove something called micro algae. Need some proof of their abilities?
This photograph shows two tanks that contain samples from a freshwater source. What do you notice about the two tanks of water? Predict what will happen if scientists put mussels into the tank on the right. Write your prediction under Step 1 below.
The photo was taken just after the water was poured into the tanks.
Step 1: Make your Prediction
Step 2: Test Your Prediction
Now test your prediction. Click on the "+" sign below to see what happened after the mussels were added.
Step 3: Explain Your Thinking
After testing your prediction, answer the following questions in the box below.
- What differences do you notice about the two tanks?
- What information did you use to make your prediction?
- How did the results match your prediction?
Step 4: Check Your Understanding
Before moving on, click on Match It to check your understanding of what you've learned so far.
