Can The Light Of A Glow Stick Be Affected By The Temperature Of Water Essay

For our science project, we chose to do one that included luminol. Before we started, we found 3 cites, stating,” luminol will preform better in extreme heat than it does in room temperature or ice water.” Also one cite says,” It is used by crime scene investigators to discover spots of blood, even spots that may have been washed.” The last cite writes,” It was concluded that an inverse relationship exists between surface temperature and the reaction rate of the Luminol test.” Our question/ purpose was,” How does temperature affect luminol?” My hypothesis was that I thought that the warm water would affect the luminol more than the cold water.

The dependent variable in the experiment was the temperature and energy absorbed by the water.

Abstract: This experiment introduced the student to lab techniques and measurements. It started with measuring length. An example of this would be the length of a nickel, which is 2cm. The next part of the experiment was measuring temperature. I found that water boils around 95ºC at 6600ft. Ice also has a significant effect on the temperature of water from the tap. Ice dropped the temperature about 15ºC. Volumetric measurements were the basis of the 3rd part of the experiment. It was displayed during this experiment that a pipet holds about 4mL and that there are approximately 27 drops/mL from a short stem pipet. Part 4 introduced the student to measuring

The experiment can also be done to compare the burn rate of different colored candles.

To conduct this experiment, a candle was placed upright in a pan of water, was lit, and the flame was allowed to fully develop. Then a graduated cylinder was placed upside down to represent an airtight chamber, and the water rose. The point where it rose to was

Glow sticks, like many other everyday items, have chemistry involved with them. Glow sticks were discovered by Edwin Chandross in the 1960s. He was a young chemist at Bell Labs in Murray Hill, New Jersey. Edwin Chandross actually discovered the glow stick on accident. All along he was just trying to find a general way to explain chemiluminescence. By mixing florescent light and hydrogen peroxide with oxalyl chloride, he discovered how to create a glowing chemical light. From Chandross original discovery a lab team called American Cyanamid, led by Michael M. Rahurt, created an oxalate ester named phenyl oxalate to replace the oxalyl chloride. This lab team then sold their new product to a group named Omniglow who went

Two of the glow sticks will be blue whereas the remaining two will be red. However, in order to test the effect of bright colors against dull colors, I will be wrapping one blue and one red glow stick in wax paper in order to make their colors dull, leaving the other two unwrapped to give off a brighter color. I will also use two male B. splendens, both of which will be contained in their own, two gallon, plastic aquarium filled with water. To monitor the temperature of the water inside the aquariums, a thermometer will be placed in each. One of the fish, inside its aquarium, will be the experimental group while the other fish will be the control group. The experimental group will be exposed to only one glow stick at a time, whereas the glow sticks will be absent from inside the control group’s aquarium at all times during the experiment. Cardboard will also be required, as it will act as a barrier between the two aquariums. This barrier will prevent any light from the experimental group being visible to the control group. In addition, the cardboard will keep both fish visually isolated from each other, which will, in turn, prevent the two fish from being aggressive towards each other and affecting the data. Finally, I will use a timer to keep track of the amount of time that the experimental fish was exposed to each glow

The Effect of Sugar On The Melting Rate Of Ice. Abstract: The melting rate of each type of ice cube was different, depending on whether they had sugar in them or not. One type of ice cube contained sugar, where the other one didn’t, and as a result, the lowering of the freezing point of the water seemed to be affected by the sugar.

14. The experiment was repeated with each water temperature until all tests had been conclusively completed.

Chemiluminescence is the production of light from a chemical reaction.In this chemical reaction, two chemicals react to produce an excited intermediate which breaks down releasing it’s energy as photon’s of light to reach it’s ground state. This reaction can be seen in a glow stick when a solid ester reacts with hydrogen peroxide producing phenol and cyclic peroxide. Cyclic peroxide then reacts with the dye in the glow stick to ultimately create the glow. The glow stick was first invented by Michael M Rauhut and Laszlo J Bollyky based on the works on Edwin A Chandross. Glow Sticks are very important to the modern times because they affect the society, living conditions and the environment.

A flame test is conducted by dipping a wire loop into a solution that contains sodium or potassium ions, and then, once saturated, the loop is heated by a fire. This dissociates the salts into neutral atoms which, when heated to an ever higher temperature, excites the electrons such that they fulfill a higher energy level. When the electrons fall back down to their ground state, the resulting light will be a specific color depending on the ions present. When sodium is present the flame will be an intense yellow color, while the flame will appear violet in color if the solution contained potassium. When both are present together, however, the vibrancy of the sodium overpowers the faint color that the potassium ions emit, such that a filter made of cobalt glass must be used to block out the light of the sodium ions, so that the light produced by the potassium ions may be seen. The first week the experiment was conducted, the flame test was done on the sea water solutions, while the dehydrated salts, obtained by placing a sample of the sea water into an oven and allowed to evaporate, were used during the second

Is a lava lamp a toy? It is a household item? It is science in action.  But what is the science of a lava lamp?  This study will determine how a lava lamp creates the look of floating blobs suspended in a liquid substance.  Through at-home trial it will be determined how factors such as density, viscosity and weight effect a successful lava lamp.

The method of the experiment changed because a battery-powered UV light source was used. This was found to be unreliable as the battery would run out after only a 2-3 days which meant this experiment had to be restarted. This occurred twice and in order to keep the experiment

The reason the water rises in the candle experiment is a flame consumes oxygen when burning. The flame goes out after a few seconds because all of the oxygen has been consumed. However air is made up of other gases like nitrogen. Because oxygen was removed from the inside of the cup, the pressure in the cup is different from the outside. To equalize the pressure the water is pushed up into the cup to return the balance in pressure. Another thing that contributes to the water movement is the contraction of the air in the cup. The flame in

The one candle got the water to rise up 1 inch and a half, two candles rose ¼ of an inch and the three candles got the water to rise up ¼ of an inch as well. Because of the results it was hard to match it with an explanation but the closest it supported was explanation 3 because of the water still rising a bit than nothing. Since more candles mean more carbon dioxide being created we came to conclude that there might have been CO2 molecules dissolving in the water causing it to rise a bit. The experiment disagreed with explanations 1 and 2 because there was no pressure in the outer of the flask to cause the water to rise up and the water barely rose which causes it to be that what should have caused the rising was the CO2