The pH Factor

Cleaning Pennies

Dull PennyWhich substance do you think can clean this penny better? CLICK on a cup below to find out.


Baking Soda


Lava Soap

Lemon Juice

Lesson plans . . .

Cleaning Pennies in the Classroom

Acid Rain on the Internet



How to Expand a Science Concept

pH Factor Home Teacher's Guide Excite Explore Explain Museum Menu
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