Cleaning Pennies
Which substance do you think can clean this penny better? CLICK on a cup below to find out.
Baking Soda
Vinegar
Lava Soap
Lemon Juice
Lesson plans . . .
Cleaning Pennies in the Classroom
Acid Rain on the Internet
How to Expand a Science Concept
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Which substance
do you think can clean this penny better? CLICK on a cup below
to find out.
