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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.

Learners will see that changing the shape of an object, like a clay ball, that is more dense than water, can affect whether the object will sink or float.

Learners observe a flask with a balloon attached over the mouth and inverted inside the flask.

This activity has learners observe water and compare it to other liquids.

Learners discover that soap can be used to power a boat. Learners make a simple, flat boat model, put it in water, and then add a drop of detergent at the back of the boat.

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

This is an activity about turbidity, or the amount of sediment suspended in water.

In this physics activity (page 10 of the PDF), learners will explore how energy from moving water can be used.

Learners see that a can of regular cola sinks while a can of diet cola floats. As a demonstration, bubble wrap is taped to the can of regular cola to make it float.