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Defining Density
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In this introductory demonstration and activity, learners are introduced to the concept of density as they explore a rock and a wooden block in water.
Changing the Density of an Object: Changing Shape
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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.
Daffy Density
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In this chemistry activity, learners explore density by using four solids and 6 liquids to create colorful, layered rows.
Red, White and Blue II Demonstration
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In this chemistry demonstration, learners investigate the rule "likes dissolve likes" by combining three, immiscible liquids to create a colorful density column.
Changing the Density of a Liquid: Heating and Cooling
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Learners investigate how the temperature of water affects its density.
Changing the Density of an Object: Adding Material
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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.