# Search Results

Showing results 1 to 17 of 17

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In this activity, learners experiment with different variables in making hollandaise sauce to achieve the correct texture and consistency.

\$10 - \$20 per student Ages 11 - 14 45 to 60 minutes
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In this activity, learners investigate diffusion by creating underwater "fireworks" using food coloring, oil and water.

\$1 - \$5 per student Ages 6 - 11 5 to 10 minutes
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In this activity, learners can create five-layer density columns by employing one of three (or all) methods.

\$5 - \$10 per group Ages 11 - 18 45 to 60 minutes
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Learners observe working lava lamps to understand how they work (included in PDF link).

\$10 - \$20 per group Ages 8 - adult 10 to 30 minutes
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In this activity, learners experiment with the density of ice, water, and oil. Learners will discover that the density of a liquid determines whether it will float above or sink below another liquid.

\$1 - \$5 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners add food coloring to hot and cold water to see whether heating or cooling affects the speed of water molecules.

\$1 - \$5 per group Ages 11 - 14 45 to 60 minutes
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In this activity on page 4 of the PDF (Water in Our World), learners conduct some quick and easy tests to determine the differences between water and other liquids that look very similar to water.

\$1 - \$5 per student Ages 6 - 14 10 to 30 minutes
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It's difficult to see convection currents in any liquid that's undergoing a temperature change, but in this Exploratorium Science Snack, you can see the currents with the help of food coloring.

1 cent - \$1 per student Ages 8 - 18 10 to 30 minutes
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Learners create three solutions with different levels of salinity. They compare the density of these solutions by coloring them and layering them in a clear plastic cup and in a soda bottle.

\$1 - \$5 per group Ages 8 - 18 10 to 30 minutes
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In this activity, learners use oil, water, food coloring and antacid tablets to create a bubbling lava lamp. Use this activity to introduce concepts related to density, hydrophobicity vs.

\$5 - \$10 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners explore how hot and cold water move. Learners observe that temperature and density affect how liquids rise and fall.

\$1 - \$5 per student Ages 4 - 11 45 to 60 minutes
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Learners pour equal amounts of coffee, mineral oil, corn syrup, and alcohol into a beaker. The liquids resolve into stacked layers, and learners can infer which liquids are the most and least dense.

\$1 - \$5 per group Ages 11 - 18 10 to 30 minutes
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In this chemistry activity, learners explore density by using four solids and 6 liquids to create colorful, layered rows.

\$1 - \$5 per group Ages 6 - 18 5 to 10 minutes
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In this quick activity about the properties of water (page 1 of PDF under SciGirls Activity: Malformed Frogs), learners will use an eyedropper to slowly place one drop of water at a time onto a penny,

1 cent - \$1 per group Ages 8 - 14 10 to 30 minutes
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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.

\$1 - \$5 per group Ages 6 - 18 Under 5 minutes
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In this activity, learners will explore how a hydrometer works by building a working model and conducting experiments.

1 cent - \$1 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners examine the parts of a thermometer. After placing a thermometer in hot and cold water, learners look at molecular model animations of the liquid in a thermometer.

\$1 - \$5 per group Ages 11 - 14 45 to 60 minutes