Experimental Procedure. Fill four cups each one quarter full with each of the six cleaning solutions suggested (4 with lemon juice, 4 with orange juice, 4 with cola, 4 with water, 4 with baking soda paste and 4 with dish liquid). Carefully record each coin's condition prior to placing it into its cup.
Home · Experiment. which of the four ingredients will have the capacity of cleaning the pennies better? Hypothesis: if salt and vinegar removes the dirty better, then the pennies will be brighter because its components. Dependent Variable:
Guidance for your Science Fair project. 1.. If your best guess is that lemon juice will clean pennies better than milk or saltwater, then your hypothesis is "Lemon .
Science Projects on Cleaning a Penny. Ketchup. Soak your pennies in ketchup to clean them like new. Hot Sauce. Hot sauce, like Tabasco or taco sauce, also will remove the oxides off pennies. Coke. Coke and off-brand colas will quickly remove the tarnish. Citrus Juice. Pencil Eraser. Vinegar and Salt.
Penny cleaning science projects are a popular choice at grade school science fairs – and for good reason. The chemistry behind the experiment is simple yet.
Statement of the Problem Which solution will clean a dirty penny better?. STEM Fair Project Project title: DIRTY PENNY CLEAN Student Name: Jacob Aryee. length of time in liquid (5 minutes) Independent variable: Cleaning Solution (e.g.. . Science Fair Project The Affect of Vinegar on a Stain Physical Science Sarah .