Use these steel balls as a substitute for iron filings for studying the phenomenon of magnetic fields. You can form clusters and chains between unlike poles of magnets. Each ball is polished and measures 3mm diameter. Pack of 100. Good for a variety of science applications (science projects, demonstrations and more).
Dig deeper, and discover the fascinating crystal structures of minerals and rocks with this great kit!
Every kid needs one of these spheres!
Experiment with engines powered by air pressure and water, and build models to race your friends!
Easily assemble a working alarm motion detector!
Teach your students about green energy sources in a creative way with this fun kit!
Build over 100 exciting electronic projects with this easy to use kit!