Why do we love Christmas trees? Is it because the leaves are so ... Through the end of December, spectators can marvel at the Colorado Blue Spruce's 450 strings of LED lights and 120 star ...

Demo Time: 5 minutes to set up. ~30 - 50 minutes for the reaction to proceed. Chirstmas tree variation: A copper sheet is cut in the shape of a Christmas tree which is suspended from the top of a 1L ...