Proposal for the chemiluminescence

A	Observations made
	I observed that light stick in the chemiluminescence enables the light stick to last longer than glow-in-the-dark that phosphorescence is present in.
B	Research Question
	Does Chemiluminescence last longer than phosphorescence exposed under Ultraviolet  Rays?
C	Hypothesis statement
	Chemiluminescence last longer than phosphorescence exposed under Ultraviolet rays.
D	A short summary of research done on the area of investigation
	Research shows that phosphorescence exposed under Ultraviolet rays last longer than phosphorescence under normal light. Chemiluminescence occurs due to chemical reaction while phosphorescence occurs only when it absorbs the radiation, and then it re-emits the radiation at lower intensity for up to several hours after the original excitation. Phosphorescence  Phosphorescence occurs when energy in light waves is absorbed by a phosphorescent material and later released in the form of light, at a very slow rate. This slow release of light energy is what causes the glow-in-the-dark sticker to continue glowing over a period of time. When ultraviolet light is absorbed by the phosphorescent material, electrons in the atom become"excited". These electrons will eventually return to their normal energy levels, gradually. It is during this gradual process of electron state "degradation", that the material is seen to glow. Chemiluminescence- present in light sticks Lightsticks or glowsticks are used by trick-or-treaters, divers, campers, and for decoration and fun! A lightstick is a plastic tube with a glass vial inside of it. In order to activate a lightstick, you bend the plastic stick, which breaks the glass vial. This allows the chemicals that were inside the glass to mix with the chemicals in the plastic tube. Once these substances contact each other, a reaction starts taking place. The reaction releases light, causing the stick to glow! Chemiluminescence is the production of light from a chemical reaction. Two chemicals react to form an excited (high-energy) intermediate, which breaks down releasing some of its energy as photons of light (see glossary for all terms in bold) to reach its ground state
E	Bibliography (Please refer to RS Students’ Handbook in RS Folder on Inet regarding APA Style Format)
	http://en.wikipedia.org/wiki/Chemiluminescence http://en.wikipedia.org/wiki/Phosphorescence  http://www.cycleback.com/blacklight/five.html http://www.scienceinschool.org/2011/issue19/chemiluminescence http://chemistry.about.com/od/howthingsworkfaqs/a/howlightsticks.htm