Below is a list of the 1190 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 . It will help you focus on an area of science that's best for you without having to read through every project one by one!

Find a winning project in our huge library of science fair ideas all organized by grade level! Get detailed guides for experiments in biology, physics, & chem.

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.

Find the best STEM projects & science fair project ideas · Over 55 subjects · Easy science fair projects, Top 10 & more!

Find easy and fun science fair project ideas for elementary, middle and high school students. Learn how to use the scientific method, make a poster, and explore topics like food, physics, life, solar system and more.

Get ready for the science fair! Here are 30+ easy science fair project ideas for elementary aged kids organized by grade level.

Find inspiration for your science fair project with these 25 ideas that cover various topics and difficulty levels. Learn how to conduct and showcase your research with Polygence, a program that matches high schoolers with mentors for personalized research experience.

Need science fair project ideas? Find them here for every grade and interest, plus tips and resources for making your project stand out.

Find fun and engaging science projects for high school students in various topics and disciplines. Learn how to use the scientific method, coding, engineering design process, and more to explore STEM concepts.