Sound waves will not travel through a vacuum. Prove it with this demonstration of a ringing bell inside a sealed glass jar. As air is gradually vacuumed out of the jar, the bell will become faint, and will eventually become silent. Great demonstration model for the classroom setting.
Over 300 electronics projects in this kit will keep the young scientist busy!
This 10 inch realistic model has removable organs that can be studied and set back into the correct position!
This classic device is used to demonstrate the conservation of mechanical energy.
This unique 4D triceratops model is a must-have for the dinosaur fan in your family!
Create your own super-versatile laser ray box for teaching optics with this set of three snap laser pointers.
This all-plastic intermediate-level yo-yo is great for the seasoned yo-yo user!