Learning Resources GeoSafari Stereoscope. Curious children can get an up-close look at a variety of 3D objects using the GeoSafari Stereoscope, a fully functional microscope with 20x magnification.  Designed specifically for kids, the Stereoscope features two extra-large eyepieces (no need to close one eye!), 10x and 20x magnification, an easy-focus knob, and a sturdy viewing stage with a top-mounted LED light for a magnificent, magnified view of opaque objects like fossils, rocks, insects, and more. Place one of the 12 included rock samples (or any found object) on the stage of the Stereoscope, then turn on the light and take a closer look. Requires 2AA batteries, not included. Age 8+