Summary
The SciGirls trace pollution upstream, testing river water at several points to work out where the problem enters and who can fix it.
Viewer safety
Ages 7+
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Teaching resources
Discussion questions
Discussion
Full episode (28 min) from SciGirls, season 7.
- How did testing several spots help find the source?
- What flows into a river without anyone pouring it in?
- Who would you tell if you found a problem in your river?
Quick work-a-long
Vocabulary: watershed, pollution, upstream, test.
Try it: Draw a river with three test points. Mark where you'd guess pollution enters and explain your reasoning.