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Three Easy Science Experiments Your Child is Sure to Love

IMG_2672_philly_00429Children have a natural curiosity in STEAM subjects (science, technology, engineering, arts and mathematics). You can encourage your little scientist’s interests by conducting the following easy experiments at home.

Milk Fireworks: Pour whole milk into a baking pan. Add drops of red and blue food coloring. Add a “squirt” or two of dishwashing liquid, and watch the colors burst and swirl! When the “fireworks” slow down, add another couple of drops of dishwashing liquid to get them going again. Explanation: The soap separates the fat from the other liquids in the milk, causing patterns to appear.

Dancing Raisins: Put raisins (or dried corn or macaroni) in a clear cup. Fill the cup with lemon-lime soda. Watch how the raisins bob and sink in the cup. Ask your child what makes the raisins do this. Explanation: The gas bubbles in the soda lift each raisin up, and when the bubbles reach the surface and pop, the raisins sink.

Salt & Vinegar Pennies: Put ¼ cup of white vinegar into a clear plastic or glass bowl. Add one teaspoon of table salt and stir until the salt dissolves. Dip a dull, dirty penny halfway into the liquid, holding it there for 10 to 20 seconds. Remove the penny from the liquid. What does your child see? Explanation: Salt and vinegar create a weak acid that dissolves copper oxide, which is the tarnish on a dull penny.

*An adult should oversee all activities. Activities may not be appropriate for all ages.