BVI National Science Fair
Team Jost Van Dyke Primary
"Which solution is Best for Cleaning Pennies"
Grade K-3
By: Lea Ruffin, Jeilon Donovan, Remington Pickering
Abstract:
Many people throw away their pennies because they do not know how to clean them. The purpose of this experiment is to find out which liquid is best for cleaning pennies - which one will dissolve the built-up copper oxide on pennies. The liquids used are water, vinegar, coke, and lemon juice. Pennies were placed in each liquid over night in plastic cups. Students then observed if there were any changes to the pennies and the results were recorded.
"An apple experiment"
Grade K-3
By: Angelina Donovan, Daiva Chinnery and Skye Turbe
Abstract:
What will happen to the sliced apples after 1.5 hours if we place them in lemon juice, milk, vinegar/water, and soda? All the apple slices will turn brown. First, we cut the apples into slices. Next, we put 2 slices of apples in each bowl. Then we added the lemon juice, milk, vinegar/water, and soda 1 in each bowl. We observed what happens in an hour and then 1.5 hours. Lastly, we record our observations, come up with a conclusion, and share our findings. We observed for an hour that some of the apples started turning a little brown, while one stayed the same colour. Our final results were that the vinegar/water was completely brown, and the milk and soda were a little brown still. The lemon juice was the only one that did not turn colour at all. We concluded that only the lemon juice did not turn colour.
