DIY Balloon Car: A Fun and Easy STEM Project

DIY Balloon Car: A Fun and Easy STEM Project

Looking for a fun and educational activity to do with your kids? Look no further than this DIY balloon car project! This project is perfect for kids of all ages, and it’s a great way to teach them about STEM (science, technology, engineering, and math) concepts. Plus, it’s just plain fun!


  • Fishing line
  • Balloons
  • Glue dots or tape
  • Straw
  • Decorations (optional)


  1. Decorate your balloon. You can use crate paper, stickers, or markers to make your balloon look however you want. This is a great opportunity to let your child’s creativity shine!
  2. Attach the fishing line to the balloon. Cut a piece of fishing line about 12 inches long. Tie one end of the fishing line to the neck of the balloon, and then tie the other end to the straw.
  3. Attach the glue dots or tape to the straw. Place a glue dot or piece of tape on each end of the straw. This will help to keep the balloon from slipping off the straw.
  4. Blow up the balloon. Blow up the balloon until it is about the size of a softball. Be careful not to overinflate the balloon, or it could pop.
  5. Let the car go! Hold the straw and let the balloon go. The balloon will zoom across the room, powered by the air pressure inside the balloon.


  • If you want the car to go faster, try using a larger balloon.
  • If you want the car to go slower, try using a smaller balloon.
  • You can also experiment with different types of fishing line and straws to see how they affect the car’s speed.
  • This project is a great way to teach kids about STEM concepts such as force, motion, and energy.

Have fun!

This DIY balloon car project is a great way to have fun with your kids while also teaching them about STEM. So what are you waiting for? Give it a try today!