$ 31.50 · 4.7 (350) · In stock
Balloon Rocket STEM Activity - Happy Brown House
How to Make a Balloon Rocket: A Fun STEM Experiment!
Create a Balloon Powered Car : 16 Steps (with Pictures
Make A Balloon Rocket - Little Bins for Little Hands
Make A Balloon Rocket - Little Bins for Little Hands
Gear Driver : 4 Steps - Instructables
Bits4Bots - Make a Balloon Rocket STEM Kit : 9 Steps (with
Take It & MAKE It - STEM Kits Balloon Rocket Tutorial
Siren Circuit Solder Practice kit. Learn to solder with this 2 in