When a pair of young sisters from the neighborhood knocked on the door to invite us to "Science Experiments on the sidewalk at 7pm", we immediately accepted. Gathered in the grass, we were treated to two fabulously fun projects:
#1: Mentos and Soda Pop
#1: Mentos and Soda Pop
Step 1: Cover the pop bottle opening with a piece of stiff paper. Step 2: Create a cylinder from paper and line-up a package of Mentos for launching. Step 3: Quickly remove the stiff paper covering so that the Mentos slide into the soda pop. Step 4: Step back and watch the magic of science! Step 5: Compare different types of pop - diet, regular, clear, and ??? |
Step #1: Fill a container with half a cup of 20-volume hydrogen peroxide liquid (20-volume is a 6% solution, which can be found at a beauty supply store or hair salon). Step #2: Mix in 1 Tablespoon of liquid dish washing soap. Step #3: Add in a few drops of food coloring. Step #4: In a separate container, mix 1 Tablespoon (one packet) of dry yeast with 3 Tablespoons of warm water. Step #5: Pour yeast & water mixture into the main container with the prepared solution. Step #6: Step back and enjoy the show! |