Mystery of the Eleven Unknown Substances
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Fourth graders identify eleven white substances that are commonly found in the household. They, in pairs, perform experiments on a variety of substances, and must identify them based on the reactions they observe.
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Using Chemical Change to Identify an Unknown
If you have taught the first lesson plan in this mini unit, learners already know that cabbage juice and vinegar cause chemical changes in some materials. Now, they get a chance to use them to compare the liquids' reactions to five known...
3rd - 8th Science