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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 activity on page 60, learners examine and simulate wildlife entanglement by experiencing what it might be like to be a marine animal trapped in debris.

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

In this activity (Lesson 1), learners work in groups to create tide simulations.

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

In this activity, learners explore a bucket of sand and beach objects.

In this activity, learners construct a coastal landmass from sand and add features such as tidal creeks and barrier islands.