Neon lights are used in many signs and commercial displays. The lights give off a unique red light. These lights work by passing an electric current through a glass tube filled with neon gas (noble gas). Neon gas produces a red color; however “neon” lights can be found in a variety of colors. Use what you know about photos and atomic structure to explain how it is possible to produce other colors of “neon” light.

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.