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In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater.

In this lab activity, learners explore how to initiate a density current. Learners measure six flasks with different concentrations of salt and water (colored blue).

In this experiment, learners examine how pressure affects water flow. In small groups, learners work with water and a soda bottle, and then relate their findings to pressure in the deep ocean.

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.

This activity provides a hands-on experience with a scale model, a relatively high viscosity fluid, and feeding behaviors.

Investigate the interaction of liquids of different densities and experiment with wave patterns with this hands-on activity.

In this activity, groups of learners work together to create edible models of chemicals involved in autotrophic nutrition.

Using simple, inexpensive items, learners build and test submarine models.

In this quick activity, learners observe how wind creates ocean currents.

In this activity, learners will explore how density is affected by temperature and how that can create currents.