Remarkable physics, built by hand.
Demonstrations, original equipment plans and teaching resources from Bruce Yeany, shaped by 41 years in the physical science classroom.
Free for home and classroom use. No ads, no tracking.
Stringless Pendulum Tracks
The equipment behind the demonstrations
73 construction plans for devices Bruce built for his own classroom, written from his workshop handouts: materials, tools, photos, the physics, and how to use each one in a lesson.
Workbench plans are Bruce's classroom equipment. The experiments further down are simpler versions designed for home.
Open-Works Wall Clock
Take the case off a yard-sale clock and its spring, gears and pendulum become a working lesson on energy.
No-Magnet Motor (Double-Coil Motor)
Students who have built the classic coil-and-magnet motor are always surprised that it still spins when the magnet is swapped for a coil of wire around a bolt.
Ramp Walking Bunny
Set this wooden bunny at the top of a gentle slope and it rocks, swings its back legs forward and hops its way to the bottom with no motor at all.
Bruce's Workbench, in one book
The build plans, collected into a 311-page book: eight chapters, step-by-step photos, the physics behind every device, and a code on each plan to watch Bruce use it.
Preview edition. Bruce is still reviewing it, so details may change.
Teaching it, or building it at home?
Teach a concept
5E lesson plans for every experiment, an NGSS standards map, and age-appropriate worksheets with answer guides.
For teachersBuild together
Kitchen-table projects sorted by age, with photos, a materials checklist, and the science explained for kids and for grown-ups.
For families & homeschool
Science by kids, for kids
The Homemade Science Jr. crew films its own experiments. Watch a video, grab a grown-up, and try it yourself.
Cloud in a Bottle
Make a real cloud appear and disappear inside a bottle.
Water That Won't Spill
Hold water in a straw with your thumb, and flip a cup of water upside down without spilling.
Conductor Tester
Which things let electricity through? Build a tester and find out.
41 years of making science make sense
Bruce Yeany taught physical science for 41 years. His favorite teaching tool was always something he built himself: a fountain from soda bottles, a pendulum that draws, a toy that walks down a ramp on its own.
Since retiring he has kept building, and sharing it. His YouTube channel, Homemade Science, has more than 250 experiments and 65 million views from classrooms and kitchen tables around the world.
“If there's a lesson here, it's always check your sources and test things for yourself.”
Exhibits, workshops & collaborations
For museums, schools and districts, creators and STEM companies. Tell us what you have in mind.