The Lens Set is an excellent set of 6 unmounted glass lenses with round edges. Each set includes one each of double convex, plano-convex, concavoconvex, double concave, plano-concave, and convexo-concave lens.
These are 50mm diameter.
A touch of joy. A touch of science. Light responds to your touch and to the music in your room!
Learn about detective science through this fun fingerprinting kit!
This superb chemistry set features 350 mind-boggling experiments!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Heavy-duty microscope for high-school and college biology labs. Magnification of up to 1000X.
You don’t think recycling is cool? Get a look at this, we’re sure you’ll change your mind!