This is a green sticky note. I did not know they made green sticky notes. When did they make green sticky notes? Are they more expensive than the yellow sticky notes? If so by how much? are they worth the extra price? Why or why not? Why can yellow sticky notes turn different colors? what colors can they turn into? Levi says they can turn red, purple, pink, and of course yellow. What makes them turn different colors? is it possible to make the yellow sticky notes turn into a different color on command? Does it take a specific amount of time? If so how much time does it take? if it is possible to make them change colors is it random? or does it depend on what you do that makes them change a specific color?