Volcano Making Kit
Build a plaster volcano, then use household items to make it erupt with bubbling lava.
Color Mixing Glasses
Features 1 pair of child-size glasses and 8 easy-to-change lenses, 2 each of red, yellow and blue and distortion lenses...
Little learner 2-way microscope
Well-designed optical toy, with a clever angled mirror allowing a double specimen observation, from both above and underneath. 4X magnification....