Below is a list of the 1253 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.

Apr 26, 2025 · Science fairs are a thrilling opportunity to show off your creativity, problem-solving skills, and love for discovery. In this guide, you’ll find over 50 carefully curated science fair …

1000 Science Fair Project Ideas by Subject Looking for a science fair project idea? Each of our science fair project idea has complete instructions with video. Get ideas for your science …

Nov 11, 2025 · In this guide, you will find 100+ creative science fair project ideas for every grade and STEM field, each designed to spark curiosity, encourage problem-solving, and make …

Feb 8, 2024 · However, it’s easy to get stuck on what science fair project to do as there are so many ideas to choose from. In this article, we’ll explore 25 science fair project ideas that can …

Mar 12, 2023 · Do you need a science fair project idea? We have 50 (and counting) science fair project ideas for kids of all ages that is sure to inspire your next science fair to be the best one …

Jun 10, 2025 · Science fair is an opportunity for students of all ages to ask big questions, conduct meaningful research, and make exciting discoveries. Browse hundreds of science fair project …

Read this list of 200 science-fair project ideas. Circle all of the ones that sound interesting to you. 1. How does the temperature of a tennis ball affect the height of its bounce? 2. How does the …

Jan 4, 2026 · If you’re a student looking for inspiration, this 2026 edition has 50+ exciting science fair project ideas from easy experiments to advanced engineering challenges.

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!