The frog is probably the most widely-known and recognized amphibian in the whole of the animal kingdom, and their fascinating life cycle development can serve as a template for understanding amphibians more generally. They begin life as one cell creatures, after which they progress through six tadpole stages, growing a tailbud, external gill, internal gill, hindlimb, forelimb, and shortened tail, in that order. Afterwards, the fully developed tadpole matures into a froglet.
With this educational specimen, you can see firsthand all of the stages of a life of a common frog. The block features real-life samples of the one cell stage, all tadpole stages, and a small froglet. All of this is nicely presented in an acrylic block. Used as a slide under a microscope or as a hands-on specimen, this makes a fantastic addition to any science classroom.
An ancient toy featuring optical illusion and hands-on fun that never grows old!
This magic bird defies gravity before your very eyes!
See the solar system in action!
This classic device is used to demonstrate the conservation of mechanical energy.
This illuminated orbiter is great for demonstrations in the astronomy classroom!
Build 14 assorted solar robots, some of which can travel over water!
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