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All right! The penny's clean. Vinegar cleaned the penny. Vinegar is a acid. Try cleaning the penny with another substance.CLICK on a cup below. |
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| Baking Soda | Vinegar | Lava Soap | Lemon Juice |
Lesson plans . . .
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| Cleaning Pennies in the Classroom | Acid Rain on the Internet |
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| How to Expand a Science Concept | |
CLICK on the button of your choice below . . .
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