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Some aquatic organisms live in open water, while some live in soil at the bottom of a body of water.

In this activity, learners will discover why there are holes in bread.

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

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

In this activity (page 1 of the PDF under SciGirls Activity: Bogs), learners will test cups full of potting soil, sand, and sphagnum moss to see which earth material is able to soak up the most water.