This cool new Pi t-shirt features math constant Pi to 1000 decimal places!
You will be super-cool when you wear this shirt on March 14th, the Pi day!
On March 14th, people all over the United States participate in National Pi Day, which celebrates the irrational number Pi and encourages funding for math and science programs in schools.
Perform awesome experiments using everyday materials found in any kitchen!
Build a model green house and 9 other green energy-related devices with this great kit!
See the solar system in action!
Create all kinds of marble run combinations with this 80-piece Marble Run set!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
This kit will get your paper plane ready for takeoff!