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https://youtu.be/6I9tenSb-Zg People have been getting tattoos for thousands of years, but we've never quite been sure why the ink sticks around under our skin. A group of researchers now think they... read more
Categories: Gr. 11-12 Chemistry
In this demo, the teacher creates a tower of sodium acetate trihydrate from a supersaturated solution. Your students’ curiosity will grow as you demonstrate the concepts of supersaturation and... read more
On Nov. 30, 2010, astronomers discovered asteroid 2010 WC9. However, it soon faded from view and was lost. But now it's back, and it's going to whiz past Earth Monday night. Source: Lost asteroid to... read more
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