Balloon Rocket Cars

I am always looking for an easy project I can do in a classroom of 30+ kids. If I can quickly put kits together, that's great, but many projects, especially when preparing for 30+ kits, take a lot of work and time. So, when I found a kit for this project for $1.20/kit, I jumped on it and bought 4 se...
By: Kto6Science

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