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Keep it in your wallet at all times so you're always ready to do some science
and blue) for exploring optics
wondering what's next to Technetium in the Periodic Table
making it the most visible FDA-approved green laser available
The Pocket Scientist High School Ed. - STEM Ruler 6-12+ Keep it in your walletMaster science fundamentals to prepare for any career in STEM. STEM ESSENTIALS LASER ETCHED INTO A WALLET SIZED STAINLESS STEEL CARD: 14 helpful unit conversions, 26 essential equations, and 13 common physical constants to save time doing homework and reinforce critical concepts. Doubles as a wallet ruler, compass and protractor. Photo scale ruler to calibrate length in experimental images. Periodic table, pH scale of acids and bases, plus full
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