Can you undo water pollution?

The Preppers have been learning about recycling, pollution, and different ways to protect our planet. We conducted a science experiment about water pollution. We wanted to know if you could undo the damage done once water is polluted. We used a clear container to simulate the ocean, and added all kinds of yucky things like styrofoam, oil, paper, coffee and soap.We then left the mixture to sit during our day, checking in periodically. In the afternoon, we removed all of the trash from the water, and strained the water into a water bottle. The children were asked if they would like to drink our “clean” water…everyone yelled, “No! It’s yucky!” Our conclusion was: even though we removed the visible trash from the water, we could not undo the damage we had done once the water was polluted.