Booklet of 100 economy pH paper testing strips with a 1 to 14 color comparison chart. Great for testing acidity and alkalinity of liquids.
Build over 100 exciting electronic projects with this easy to use kit!
This plant and animal cell model activity set is a must-have resource for the science classroom!
Learn all about Newton’s Laws and Energy conservation.
A beautiful desk toy for your favorite person’s office!!
Working model representing the sun, earth, and moon and their relationships.
Command robotic creations with this cool construction kit!