Determine the specific gravity of common metals using this set of specific gravity cylinders. Four 13 X 50mm cylinders of aluminum, brass, steel and copper are included in this set. Excellent for use in any physics classroom!
The large realistic model has removable organs that can be studied and set back into the correct position.
This is a classic demonstration toy of the powers of magnetic fields!
Working model representing the sun, earth, and moon and their relationships.
See the constellations visible in the Northern Hemisphere on this watch!
This caffeine molecule mug makes an excellent gift!
The Wimshurst Machine is a high quality static machine for student labs.