Today students performed a laboratory experiment that involved metals and their electrons. Students had watched a video clip the previous day about the making of fireworks (this video is in the bar to the right if you want to learn about the makings of fireworks too (or relive it if you've seen it already)).
Gunpowder is used to get things going and explode the firework into the sky. The gunpowder in different parts of the wrapping also helps explode the fireworks outward so that the colors spread.
Different metals are used to produce different colors in fireworks. This is because of the electrons of the elements. The more excited the electrons become the more light will be produced. This also affects the color that is produced. Red colors have the least amount of energy. Blue and purple have the most amount of energy.
I took photos during the lab, but had some trouble capturing the intensity and brightness of the colors. Just ask a student how cool it was. :)
If you were absent for the Physical versus Chemical lab, you can make up the majority of it by following the link below and watching YouTube videos of the experiments. You can also just check them out because they are cool.
Open a link in a new tab. In the blue box, look for "Play Games" and "Scatter." You will then need to drag the names to the correct formula. If it disappears, you matched it correctly. Play each set a couple of times until you get really good. You can also use these as flashcards and make up and take tests.
Click on the rice above to test your knowledge of the Periodic Table while earning rice for the United Nations World Food Program. You can also test your knowledge of vocabulary as an excellent SAT prep.