Gemstone Hardness. The Mohs scale of mineral hardness was created by German mineralogist, Friedrich Mohs, in 1822 to measure the relative hardness or scratch resistance of various minerals. He based it on ten readily available minerals. As it is an ordinal scale, two minerals must be compared to decide which is harder. The scale is neither linear nor logarithmic.
AMC Black tickets are exchange items that are NOT eligible toward earning AMC Stubs rewards either at time of purchase or time of redemption. Valid seven days a week. Yellow Ticket Terms and Conditions. Not Valid in: CALIFORNIA, NEW YORK, and NEW JERSEY Present at box office only.
Exit Tickets Exit Ticket Board Exit Slip Board Teaching Reading Teaching Ideas Guided Reading Reading Skills Exit Slips Sticky Notes Exit Slip/formative assessment idea: Ticket out the Door I like the idea of having a place for everyone to put there sticky note. Then you can quickly tell who didn't turn it in. Find this Pin and more on Exit tickets by hcarpenter3.