The Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. It was created in 1812 by the German geologist and mineralogist Friedrich Mohs and is one of several definitions of hardness in materials science.
The science side of Tumblr at 3am. Watering an apple tree with apple juice progresses from "is it forced cannibalism?" to "definitely liquefied apple fetuses" through a chain of disturbingly scientific hypotheses. No one is safe from the madness of middle of the night Tumblr posts. NO ONE. Also, liquefied apple fetuses? Wtf, science side of Tumblr. W. T. F.
<p>I always love Dr. Seuss inspired science ideas and I think kids do, too. Check out this collection of science activities inspired by Dr. Seuss books. You’ll find activities that practice measuring, graphing, and observation skills, explore baking soda and vinegar, and lots more! Amazon affiliate links are included in …</p>