Get Your Science On: Writing With Light
Heather shows us a cool experiment you can make with glow-in-the-dark paper and different color LED lights.
What’s Going On?
Light causes the electrons in the paper to get excited to a higher energy level, and when the electrons fall back down to the ground state, they give off a greenish glow. Red light does not have enough energy to excite the electrons, so you don’t get any glow. Blue light more energy, and it’s enough to excite some of the electrons to a higher energy level. Violet light has even more energy, and it can excite just about every electron it comes in contact with, creating a lot of glowing awesomeness.
Building Tips
We used Inkjet Glow In The Dark Adhesive Paper that we ordered online.
