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Useful for insect collecting!
This nylon insect net extends from 18″ to 32″ with a 48″ long conical net is mounted on a 14″ ring.
Lets your students actually observe increases and decreases in a liquid's conductivity!
This is a teacher set. It will make 30 + cups of individual painted lady larvae homes! Food is inclu...
Portable USB digital microscope with LCD display. Magnification: 20x, 200x, 500x. Digital camera: 5M...
A great introduction to expansion and contraction!