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salt solution

salt solution

Dollar Store Science: The Penny Experiment

4y ago


Dollar Store Science with Lewis - The Penny Experiment You need: About 30 dirty/dark pennies 3 clear cups Water Dish soap 1/2 cup vinegar 2 teaspoons salt In the first cup, put plain water. In the second cup, put water mixed with dish soap. In the third cup, put 1/2 cup vinegar and 2 teaspoons of salt. Put pennies in each solution to see which one does the best job of cleaning the pennies. What do you think the water will do to the pennies? What do you think the soap & water solution will do to the pennies? What do you think the vinegar & salt solution will do to the pennies? Which one will clean the pennies the best? Let the pennies soak for about five minutes. While you are waiting, try dipping one dirty penny halfway into each solution. What happens to the half of the penny that is submerged in the solution? Project idea from Mom To 2 Lil Posh Divas: For more fun craft ideas, visit For more ideas for kids, visit