Balloon Powered Lego Car

Balloon Powered Lego Car
This was a fun afternoon for the whole family. We got hit with a snow storm, one of many to hit Northeast Ohio, and the kids were starting to go a little stir crazy. Meaning mommy and daddy were going a little nuts too. I dug this one out of my Pinterest hat and started playing with Arthur’s Legos. They were conveniently spread over the living room floor, so it seemed like the thing to do. Arthur likes playing with me, so he was ok with it! Tony was relaxing on the couch, asked what we were doing, so I explained: “I’m going to build a little car with an opening on the back for a balloon, so it will move across the floor.” His response was to join us on the floor.
The kids weren’t really sure what we were doing. Arthur continued to build whatever struck his fancy and Chiara started playing with the balloons. Tony and I came up with several styles of cars.
My sad little car
Tony’s, the one up top, was the best design, but you have to expect that from the crazy guy who modifies lawn mowers for his own purposes! The one shown here was my design. It did move, but not near as well as Tony’s did. The amount of space you have for air to exit the balloon is very important. My first attempt had too little space, the refresh had too much space. Tony discovered the secret:
proper opening
Tony used one of the arches from Chiara’s Lego set and it seemed to let just enough air out to give it a nice long run. My style had a nice burst of speed, but it fizzled out really fast!
My car in action
The picture on the hardwood is my sad little car only making it half the distance of Tony’s! It was really interesting blowing up the balloon while it was in the frame we built. I would say if you have Legos, to give this a try on a snowy or rainy day. I know a lot of the US is getting hit with crazy amounts of snow, so hold this one in reserve!
Original pin came from
If you want to check me out on Pinterest, look up Stephanie DeSantis and follow me to see what I may be blogging about next!

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