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.
This superb chemistry set features 350 mind-boggling experiments!
This kit includes several different projects that demonstrate the power of magnets!
This 10 inch realistic model has removable organs that can be studied and set back into the correct position!
Infiniview comes with a 3.5" LCD screen and rechargeable Lithium Ion battery that will last up to 2 hours in the field.
You don’t think recycling is cool? Get a look at this, we’re sure you’ll change your mind!
Working model representing the sun, earth, and moon and their relationships.