Clarity and Turbidity
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Pupils conduct an experiment using a secchi disk to determine the turbidity and/or clarity of a water sample. Students consider the effects of turbidity and clarity in water on plant and animal life.
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Does Clear Water mean Healthy Water?
Learners test their local aquatic site to determine its water clarity. They collect a water sample and measure its turbidity using a sensor, then they repeat the experiment to obtain a second turbidity reading to find the average value.
5th - 9th Science CCSS: Designed