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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.
Crystal Creations: Grow Spikes of Crystals in the Sun
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This activity shows you how to make amazing crystal spikes using Epsom salt and the sun.
Light Soda
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In this activity, learners sublimate dry ice and then taste the carbon dioxide gas.
Having a Gas with Cola
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In this activity, learners measure the amount of carbon dioxide in a carbonated drink.