Simple machine science for kids launching ping pong ball snowmen whenever i invite my kids to participate in science experiments my main goal is not to make sure they master a set concept but simply to allow them to explore the activity in their own way. Demonstrating a floating ping pong ball is pretty cool but it isnt a science fair project you can create a science fair project by identifying a variable or something that changes in this experiment. Use a simple science trick to easily stab a regular drinking straw through a raw heres some printable instructions print this air pressure impact on ping pong balls science experiment items needed 2 ping pong balls string 2 piece of string each 2 feet long tape one end of one piece of string to the first ping pong ball . By combining this anti gravity experiment with a couple other simple experiments involving a ping pong ball and air flow kids will not only be amazed and impressed but will learn a little about the science of air pressure as well
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