This set of compasses feature white markings with degree indicators for clear visibility. Direction-indicated, this is an excellent set of economical compasses for classroom lessons or for scouting projects.
The Duncan Phoenix Diabolo features a stable, hard rubber shell that retains its shape.
Build your own windmill generator kit by recycling a plastic bottle!
This smaller transportable Van de Graaff Generator will easily fit in any classroom!
Working model representing the sun, earth, and moon and their relationships.
This kit will get your paper plane ready for takeoff!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.