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.

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 …

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 …

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 …

May 9, 2024 · Topics for the Science Fair - 101 science fair topics in categories including health, engineering, astronomy, chemistry, and more.

In this list, we've highlighted one-day science fair project ideas for elementary school (easy), middle school (medium), or high school (hard). These experiments are fast and easy to do, but …

Nov 15, 2025 · Discover the 12 best science fair topics for 2025! Explore winning ideas from biology to engineering with actionable tips for your next project.