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In this activity, learners explore the different salinities of various sources of water by taste-testing.

The Ancient Egyptians used a naturally-occurring salt from the banks of the Nile River, called natron, to mummify their dead.

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

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 online activity, learners experience the thrill of pickle making, and explore how a cucumber becomes a pickle.