Write secret messages to your friends in the know, keep diary entries safe from prying eyes with light-coded messages, and leave invisible tags in school notebooks with this handy and affordable invisible ink pen! The pen casing is filled with invisible ink, and the thin felt tip allows you to create detailed images and messages. The pen cap contains a small UV light that allows you to reveal your messages for yourself, and to trusted confidantes. Buy a few for your friends and commence a covert correspondence or start a secret society! Makes an excellent party favor or stocking stuffer.
NOTE: This pen comes in assorted colors - depending on our current stock.
With 23 hands-on experiments, you can investigate specific weather phenomena as well as the climate system in general.
The LCD Digital Microscope II is a professional biological microscope at an affordable price. Up to 1600X with digital zoom!
Defy gravity with this cool balancing eagle!
This classic device is used to demonstrate the conservation of mechanical energy.
Dig deeper, and discover the fascinating crystal structures of minerals and rocks with this great kit!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.