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In this activity, learners investigate the different salinity levels of oceans, rivers and estuaries.

In this investigation learners explore the differences between, and interdependence of, living and nonliving elements in a water ecosystem.

An estuary is a body of water that is created when freshwater from rivers and streams flows into the saltwater of an ocean.

Did you know that the water we use today is the same water found on Earth millions of years ago? The Earth constantly uses and recycles water in a process called the water cycle.

Learners explore how the attractive forces between water molecules create surface tension and allow certain objects to float on the surface of water.

Over the course of several days, learners explore the property of water that helps plants move water from roots to leaves or gives paper towels the capacity to soak up water.