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!

Browse our collection of free science experiments which are easy to set up, and perfect for home or school.

Below is a list of the 1273 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.

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Science Buddies' sixth grade science projects are the perfect way for sixth grade students to have fun exploring science, technology, engineering, and math (STEM).

Free Topic Selection Wizard, science fair project ideas, step by step how to do a science fair project, Ask an Expert discussion board, and science fair tips for success.

We offer hundreds of free science fair project ideas for grades K-12. From astronomy to zoology we are sure to have a topic of interest to you. Here is how to find the science project idea that is best for …

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

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

Detailed information on the design, layout, and construction of a science fair project display board.