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Learners design their own experiment to explore the permeability of different materials such as soil, sand, gravel, and marbles.

How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?

What is the optimal environment for hatching brine shrimp? Using a scaffold, learners design and conduct experiments testing the effect of a single abiotic factor on brine shrimp cyst hatch rate.