Standard glass 60mm petri dish. Great for chemistry experiments.
Petri dish size: 60mm (2 3/8 inch) in diameter x 15mm (5/8 inch) thick
Easily assemble a working alarm motion detector!
Explore the invisible and amazing power of magnets with 33 engaging experiments and games.
The Ball of Whacks is the perfect creativity tool for innovators, artists, engineers, writers, students, and you!
Build your own remote control rover! Easy, educational and great fun!
Is it a demonstration of a scientific law or a work of art?
Caution! The fun found in this potato clock kit will SHOCK you!