These 1/4 inch thick black streak plates are ideal for testing the hardness or softness of minerals, as well as determining the color of lighter-colored minerals. By scratching the mineral in question against the plates, students or teachers can determine these properties by observing the quantity and hue of the residue left behind. Excellent for use in the classroom, or at home for aspiring geologists.
The LCD Digital Microscope II is a professional biological microscope at an affordable price. Up to 1600X with digital zoom!
Build a model green house and 9 other green energy-related devices with this great kit!
Giant 3D shark wall art to inspire adventure stories and lively conversations.
Comprehensive collection of 30 fossils.
This quality Dobsonian style telescope features a 76 mm aperture reflector optical tube.
Learn about detective science through this fun fingerprinting kit!