Thirteen (mostly) Chemistry Demonstrations in 280 Characters Or Less

Ground #helium balloons with a bunch of grapes. Then remove 1 grape at a time until the buoyant & gravitational forces balance out. The balloons will be suspended in the air. Children quickly catch on and have injected a little #science into an otherwise dull wedding reception. Add copper to HCl & watch nothing happen.... Continue Reading →

The Beautiful Display From Zinc Oxide in Methanol

http://www.youtube.com/watch?v=4fsfN8nJRrM When zinc oxide (ZnO) is added to burning methanol, we see blue emissions along with sparks and beautiful flashes of red and green. Why? One student had found it so incredulous that they thought our ZnO was contaminated with other substances. It's unlikely, but you could check the hypothesis by using another source of... Continue Reading →

WordPress.com.

Up ↑