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Learners compare the weight of equal volumes of wax, water, and clay. Learners discover that since the wax weighs less than an equal volume of water, it is less dense than water and will float.

In this activity, learners discover the difficulty of ocean exploration by human beings as they investigate water pressure.

In this quick activity (located on page 2 of the PDF under GPS: Balloon Fiesta Activity), learners will see the effects of convection and understand what makes hot air balloons rise.

In this activity about water solubility and density, learners use critical thinking skills to determine why water can dissolve some things and not others.

This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.

Learners investigate how the temperature of water affects its density.