A low cost pulley for simple machines experiments which can be clamped to a table.
Ever wonder how to survive in the wilderness? These cards can help!
Every kid needs one of these spheres!
Comprehensive collection of 30 fossils.
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
Watch what your music can create with this amazing Snap Circuits set!
This mirascope creates a 3D hologram image!