The pH Factor

Cleaning Pennies

Shiny PennyAwesome! The penny's clean. Lemon juice cleaned the penny. Lemon juice is a acid. Try cleaning the penny with another substance. CLICK on a cup below.


 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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