A low cost pulley for simple machines experiments which can be clamped to a table.
This kit will get your paper plane ready for takeoff!
This all-plastic intermediate-level yo-yo is great for the seasoned yo-yo user!
Investigate the most important phenomena in biology, chemistry, and physics by conducting more than 100 fun experiments!
Defy gravity with this cool balancing eagle!
This superb chemistry set features 350 mind-boggling experiments!
This amazing 96-page book will show you how to choose, maintain, and use a microscope to see amazing things!