Booklet of 100 economy pH paper testing strips with a 1 to 14 color comparison chart. Great for testing acidity and alkalinity of liquids.
Discover a world of kaleidoscopic effects within this perfectly clear prism of the Light Crystal!
Check out this amazing renewable energy science kit featuring the wonders of hydroelectric power!
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
This ultimate chemistry set features 250 mind-boggling experiments!
This is a great clean heat demonstration model for the classroom setting!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.