Over 1,200 free science projects searchable by subject, difficulty, time, cost and materials. Browse the library or let us recommend a winning science project for you!

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Below is a list of the 1251 science fair project ideas on our site. To help you find a topic that can hold your interest, Science Buddies has also developed the Topic Selection Wizard.

Explore classic and cutting-edge high school science experiments in this collection of top-quality science investigations.

Project Guide Our Science Project Guides include step-by-step instruction, from doing background research to creating a winning display board. Get Project Help

To find other projects you and your student would enjoy, browse the complete library or use the Topic Selection Wizard to see a list of recommendations that match up to your interests.

Over 1,200 free science projects searchable by subject, difficulty, time, cost and materials. Browse the library or let us recommend a winning science project for you!

Discover the perfect middle school science experiment in this huge collection of age-appropriate science investigations.

Find an elementary school science experiment that is just right for you in this collection of fun hands-on science.

Find the perfect seventh-grade science experiment from this collection of top science explorations.