Wh Mia Foust Mr. Dunlap Honor Chemistry‚ Per 7 December 21‚ 2010 Glow Sticks Since glow sticks have been invented‚ consumers have wondered how scientists are able to create these magical sticks of light. They work without producing heat. They don’t need a battery or a bulb‚ Magic? This “cool” light is called luminescence. Unlike incandescence‚ which is light from heat energy‚ luminescence can be emitted at normal or lower temperatures. There are several
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. Safety aspect of glow sticks Glow sticks are a form of lighting typically used in events and parties. The chemicals responsible for luminescence are contained within a plastic case. The chemicals are separated by a glass vial‚ such that when the stick is bent‚ the vial breaks and allows the reaction to occur. In general‚ glow sticks are considered safe to use. None of the chemicals used are classified as radiation‚ flammable or explosive hazards. Some of the chemicals however‚ are classified
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Glow Stick Lab – Informal Hypothesis: I believe the glow sticks will become ultimately brighter in the warmer temperature beaker as heat cause molecules and particles to move faster and rapidly thus producing energy where as when the glow stick is the cold temperature beaker I believe it will dim in light as energy id being taken away as particles are moving much slower and are closer to each other. Materials: * Hot plate * Two beakers (200mL) * Two glow sticks * Water * Thermometer
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Hypothesis The light from a glow stick will extinguish more quickly at higher temperatures because temperature affects the rate of the chemical reaction. Question: Will a glow stick extinguish more quickly while in a higher temperature? Purpose: To determine if a glow stick will die out quicker in a cold temperature or a warm temperature. Materials: -3 small jars/cups -water -3 glow sticks -3 thermometers -ice water -hot water procedure: 1. The independent
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Glow Sticks should be handled carefully As the nurse called my name‚ I stood up shakily and followed the nurse into the ER room. I walked through the halls of the hospital with all the moaning and groaning that I would hear muffled behind the doors. It freaked me out a little. Then we arrived at my room. We opened the door to release the stench of rubber gloves and advil. When I sat in the chair it made a squeaky noise but then it was silent. When I sat in the ER chair‚ I was thinking about how I
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Glow Sticks Since being invented some 25 years ago the glow sticks we as children have grown up with are still the partying craze at rave events and darkly illuminated venues that need that little kick of hand held lights. The principal on which glow sticks work to an everyday person is almost supernatural‚ but in fact the technology used to make it and the way it works is actually very simple indeed. But how does a light stick give off such a strong light source with no bulb and no battery
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the effect of cold temperatures on the lasting time of glow sticks. Aim: to investigate whether freezing a glow stick will affect its longevity. Hypothesis: The glow sticks will last longer when they are frozen than when they are at room temperature. Background information: Glow sticks are made of hydrogen peroxide‚ a phenyl oxalate called ester‚ and phosphorescent dye. The ester and phosphorescent dye are kept in one part of the glow stick‚ the hydrogen peroxide in the other‚ separated by a
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The Glows and Grows is an effective way to acknowledge the successes and challenges of a variety of systems‚ tasks‚ behaviors and completed work. The best time to introduce the Glows and Grows strategy in the media center is at the end of the third week. By the third week students will be familiar with the rules and expectations of media class and the media center. To begin we will discuss what the meaning of “Glow” and “Grow” are and I will provide examples if the students cannot. As a class we
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Go Glow Grow is a nutrition curriculum developed for preschool children. In conjunction with the book Go Glow Grow: Foods for You‚ children learn about healthy eating‚ exercising and the importance of hand washing. Using a simplified version of MyPlate‚ children learn the connection between healthy foods and what they do for the body. •Grains are Go foods‚ they help you run‚ jump and play all day. •Fruits and vegetables are Glow foods; they help you have shiny hair and sparkly eyes. •Milk and meat
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is done in accordance with a plan‚ which takes into account all its pecularities. The analysis strongly depends on the following points due to which the text is divided into parts and each of the parts is examined. The story by Adam Thorpe The Glow is the object of the analysis. Formal division. The text has 2 main parts or plans: the story of the main character of the text as a child and as a man. To link these two parts parenthesis is used. Parenthesis is marked out with the help of dashes
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