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Fireworks!
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In this chemistry lab activity, learners model the colors of fireworks by burning metallic solutions in a flame and observing the different colors produced.
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Forgotten Genius
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This series of chemistry stations is designed to accompany the PBS documentary about African-American chemist "Percy Julian: Forgotten Genius." Each of the six stations features either a chemical or p
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Natural Buffers
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Learners use a universal indicator to test the amount of sodium hydroxide needed to change the pH of plain water compared with the amount needed to change the pH of gelatin.
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Shrinkers
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In this hands-on activity, learners use heat to shrink samples of polystyrene plastic (#6 recycle code). Learners compare the size and shape of the plastic pieces before and after shrinking.
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Concentrate!
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In this investigation of reaction kinetics, learners alter the amount of iodate solution mixed with the same amount of starch solution.
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Acid Rain
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In this chemistry demonstration, acid rain is simulated in a petri dish.
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Currently Working
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Learners test solutions of water, sugar, salt, and hydrochloric acid for electrical conductivity. They immerse leads from a lighting device (a battery pack connected to an LED) into each solution.
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Finding Red
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In this chemistry challenge, learners systematically investigate which combination of four solutions produces a deep red color.
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Trading Places
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In this activity, learners discover that atoms and ions of different metals will change places.
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Reaction: Yes or No?
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In this activity, learners mix ingredients in a plastic bag, and then identify three characteristics of a chemical reaction: production of heat, color change, and production of a gas.