abij-tem1

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Broad Question
What is the best way to clean a penny.

Specific Question
What is the best way to clean a copper penny.

Hypothesis
I think that vinegar will be the best, then I think soda,then lemon, then milk and water.

Independent Variable:
Type of cleaning product.

Dependent Variable:
The amount of corrosion coming off a copper penny.

Variables That Need To Be Controlled:

 * Liquids solution
 * How many pennies I am using.
 * The amount of liquids I am using.

Experimental Design
(add the correct headings from the experimental design page before beginning)