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In this activity, learners explore how salt water freezes in comparison to fresh water.

Learners create three solutions with different levels of salinity. They compare the density of these solutions by coloring them and layering them in a clear plastic cup and in a soda bottle.

In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream.

In the wild, small crustaceans known as brine shrimp live in marine habitats such as saltwater lakes.

"What's in the Water" lets participants use tools to solve the mystery- what chemicals and compounds are in a sample of water?

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.