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Showing results 1 to 14 of 14
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Separation Anxiety
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In this activity, learners discover the primary physical properties used to separate pure substances from mixtures.
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Underwater Fireworks
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In this activity, learners investigate diffusion by creating underwater "fireworks" using food coloring, oil and water.
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Salts & Solubility
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In this online interactive simulation, learners will add different salts to water and then watch the salts dissolve and achieve a dynamic equilibrium with solid precipitate.
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Lava Lamps
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Learners observe working lava lamps to understand how they work (included in PDF link).
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Avogadro's Bubbly Adventure
Source Institutions
In this activity on page 7 of the PDF, learners investigate the solubility of gas in water at different temperatures. This experiment will help learners determine if temperature affects solubility.
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To Dye For
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Learners add two dyes to mineral oil and water, and then compare their miscibility (how well they mix) in each.
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Miscibility
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Learners observe a bottle containing water and oil. They are invited to pick up the bottle and mix the contents together.
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Klutz-Proof Density Column
Source Institutions
Making liquids of different densities to perfectly lay on top of each other can be a frustrating exercise. The Exploratorium created this activity as a fool proof way of making a density column.
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Layers of Liquids
Source Institutions
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.
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Paper Chromatography with Leaves
Source Institutions
In this activity on page 5 of the PDF (Plants—The Green Machines), learners use chromatography to separate and identify pigments within various leaves.
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What's the Matter
Source Institutions
In this activity, learners identify different classes of matter based on physical properties.
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Capturing Carbon Dioxide
Source Institutions
In this activity, learners investigate carbon sequestration by creating a carbonated beverage out of apple juice and dry ice.
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Floating and Falling Flows
Learners create beautiful fluid motion. They explore fluid dynamics, surface tension, solubility, and buoyancy while mixing liquids together.
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All Mixed Up!
Source Institutions
In this activity, learners separate a mixture of pebbles, salt crystals, and wood pieces. They add water and pour the mixture through a strainer.