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Take the Science Buddies Engineering Challenge!

Rubber Band Car—2024 Engineering Challenge

The results are in! Please visit the challenge results page for information on the winning teams, top scores, and more!

Collage of K-12 students with the rubber band car  devices they built for the 2024 Science Buddies Engineering Challenge

"I was most impressed by the kids' resilience and problem-solving skills during the 2024 Science Buddies Engineering Challenge. Despite the challenges, they remained determined and found innovative ways to improve their rubber band powered cars."
Valerie Volland, teacher

About the Engineering Challenge

K-12 students worldwide are invited to give engineering a try with the annual Engineering Challenge from Science Buddies. Announced every January, the Science Buddies Engineering Challenge lets students use their problem-solving skills to design, build, and test contraptions. The challenges use simple materials and are free for all to participate.

Past Engineering Challenges

Free science fair projects.