Booklet of 100 economy pH paper testing strips with a 1 to 14 color comparison chart. Great for testing acidity and alkalinity of liquids.
Learn all about the science of light, optics and visual perception with this wonderful kit!
Build a model car that runs on hydrogen gas using a unique reversible fuel cell!
This genuine meteorite is great for the rock collector in your family!
Use this temperature-controlled soldering station for a variety of soldering applications!
Exciting magnet exploration for ages 8 and up!
A beautiful desk or bookshelf accessory for the reading fanatic in your family!