Ghost Balloon Rocket STEM Challenge

Ghost Balloon Rockets 👻🎈

Ready, set… ZOOM! Turn a simple balloon into a flying ghost with this playful Halloween STEM challenge!

Kids will build their own Ghost Balloon Rocket, make predictions, test their design, and discover how escaping air can create motion. It’s an easy, hands-on way to explore force, motion, and Newton’s Third Law—with plenty of spooky fun mixed in.

Perfect for Halloween at home, STEM centers, classroom science, homeschool, or a weekend activity.

This printable guide includes:

• Simple materials list
• Step-by-step directions with pictures
• Kid-friendly explanation of the science
• Wonder questions to encourage deeper thinking
• Extension ideas for racing, redesigning, and testing different variables

Designed to encourage kids to predict • test • wonder • try again—because the best learning happens when they get curious!

Best for: Ages 4–10 with adult supervision

Format: Digital printable PDF

You’ll need: Balloon, straw, fishing line/string, tape, clothespin, marker + streamers

👻 Build it. Race it. Change it. Test it again!