Fun hands-on STEM activities (science, technology, engineering, and math) activities for kids of all ages.

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!

Free science & engineering activities for all ages at Science Buddies. Discover chemistry, robotics, physics & more with supplies easily found at home.

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

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.

Aug 5, 2020 · Quickly find free science and engineering activities for K-12 classroom, remote, hybrid, and pod learning with this list of STEM activities sorted by area of science.

Build a paper roller coaster in this fun science activity that demonstrates kinetic and potential energy.

Mar 20, 2025 · 26 free spring science projects, STEM lesson plans, and science activities to explore Spring themes, including flowers, birds, wind, rain, and more.

This activity is not recommended for use as a science fair project. Good science fair projects have a stronger focus on controlling variables, taking accurate measurements, and analyzing data. To find a …

Play with bottle rockets, add fins, a nose cone, and/or a parachute and see what you can learn about forces.