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Look-alike Liquids
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Learners add drops of four liquids (water, alcohol, salt water, and detergent solution) to different surfaces and observe the liquids' behavior.
Temperature Affects the Solubility of Gases
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In this activity, learners heat and cool carbonated water to find out whether temperature has an effect on how fast the dissolved gas leaves carbonated water.
Using Tools and Melting Ice
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In this activity, learners will experiment with different materials that can melt and change ice.
Eyedropper Hydrometer: Buoy your understanding of density
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Build a hydrometer (measures the density of a liquid) using a pipet or eyedropper.
Physical Change
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In this activity, learners use heat to separate zinc and copper in a penny. This experiment demonstrates physical properties and how physical change (phase change) can be used to separate matter.
Meltdown
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In this activity, learners heat ice and water of the same temperature to get a hands-on look at phase changes. This is an easy and inexpensive way to introduce states of matter and thermodynamics.
Defining Dissolving
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In this introductory activity, learners discover that sugar and food coloring dissolve in water but neither dissolves in oil.
Filtering
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Make a quick and easy filter from household materials. A filter will catch any solids suspended in a liquid and filter them out. By using a filter, learners can discover amazing things.
Make a Salt Volcano (Lava Lite)
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This activity about density provides instructions for making a miniature "lava lite" with just salt, oil, water, and food coloring.
Dissolving a Substance in Different Liquids
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In this activity, learners make colored sugar and add it to water, alcohol, and oil to discover some interesting differences in dissolving.
Developing Tests to Distinguish Between Similar-Looking Unknowns
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Learners identify an unknown liquid by comparing its behavior to known liquids. Learners drop liquids onto different surfaces and see how the liquids behave.
Dissolving Different Liquids in Water
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In this activity, learners add different liquids to water and apply their working definition of “dissolving” to their observations.