Your Guide to Science Fair Topics, Ideas, Experiments, and Winning Displays
Cold Light vs. Hot Light Luminescence is “COLD LIGHT.”Cold light is light that usually occurs at low temperatures. Luminescence can be produced in many different ways. Follow are just a few examples: chemical reactions: One example is a Glow Stick. A glow stick contains two solutions. The stick is a flexible tube. Inside this tube [...]
Classification is a term used for organizing things, such as plants and animals, rocks and minerals, or the pony beads used in this activity. First prepare a mixture of beads for each group of 4 to 5 kids. The mixtures do not have to be exactly the same, but each group should include the following: [...]
Why Do Somethings Glow In the Dark? A phosphor is a chemical substance that when energized radiates (emits, gives off) visible light. NOTE: Phosphors may or may not contain the phosphorus element. Scientists have created thousands of different kinds of phosphors. Phosphors differ in: 1. The type of energy that is needed to energize them. [...]
Question: What causes some objects to glow under a black light? Black lights give off Ultraviolet A light, which is a type of high-energy invisible light (radiation). Photons are packets of light energy. UV light photons have a higher energy than do the photons for visible light. Materials that glow under a black light contain [...]
ABOUT ME: Hi, I am Janice VanCleave, author of 50 best-selling science experiment books for children ages 4 through high school. I taught science for 27 years.
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