Science Fair Question
How do different colors absorb and re-emit radiant (light) energy?
Background Research Have you ever experienced the warmth provided by a shaft of sunlight through a window? This paper is going to discuss how different colors absorb and re-emit radiant (light) energy. The following terms will be discussed; energy, radiant energy, photon, and electron volt.
Energy is defined as usable heat or power, measured by the amount of work done, usually in joules or watts. Energy can exist in a variety of forms, such as electrical, mechanical, chemical, thermal, or nuclear, and can be transformed to one form to another (The American Heritage Student Science Dictionary 116). Solar radiation can be converted into
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At absolute zero, a hypothetical temperature, all molecular movement stops-all actual temperatures are above absolute zero (Kelvin Temperature Scale). Lord Kelvin, who was a British inventor and scientist, developed this scale (Kelvin Temperature Scale). The temperature scale that has an absolute zero below and temperatures that do not exist is the Kelvin Temperature Scale. The Kelvin Temperature Scale corresponds with the Celsius temperature scale, absolute zero or 0̊ k which is the temperature with minimum molecular movement corresponds with -273.15 on the Celsius scale (Kelvin Temperature Scale-Fact Monster). The Kelvin and Celsius degrees are the same size, hence to the similar freezing and boiling of water. The Celsius freezing point of water is 0̊ C and the Kelvin is 273.15̊ k. The Celsius boiling point of water is 100̊ C and the Kelvin is 373.15̊ k (Kelvin Temperature Scale-Fact …show more content…
Photon’s are discrete bundles of energy and never stop moving, which is the opposite of absolute zero (Photon-What is a Photon?). The Stefan-Boltzmann Law is a statement that the total radiation heat energy emitted from a surface is proportional to the fourth power of its absolute temperature (Stefan-Boltzmann Law) and it is a very important aspect of this project. Temperature Kelvin is the only temperature scale designed to fit absolute zero, even though absolute zero my never be reached, though it has been approached (What is absolute
Energy is the strength and ability that is required in order to perform physical or mental activities. There are different forms of energy these consist of: magnetic, kinetic, heat, light, gravitational, chemical, sound, electrical, elastic and nuclear.
Temperature scales are also used in an attempt to make the concept of measuring pain more relatable. Across the world, temperature is measured in degrees Celsius. At zero, water freezes and, at one hundred, water boils. Despite Celsius being the global standard, the Fahrenheit scale was developed decades earlier. Daniel Gabriel Fahrenheit based his temperature scale on two marks: on the lower end, the point where a mixture of salt and water would cease to exist as a liquid, and, on the upper end, a measure of normal body temperature. In an effort to add more confusion to the two standards, Lord Kelvin introduced the idea of an “absolute zero.” Absolute zero is the point where molecules and atoms are supposed to be essentially motionless. Despite this, research has showed that the motion doesn’t really stop. As Biss says, “…absolute is not absolute.” She finds that comforting, but not quite enough.
Energy is a concept.� Most definitions of the word energy fail to provide its exact meaning when applied to scientific matters.� In science the word energy is a concept that expresses two measurable properties, heat and work.� Here is the relationship of energy, heat and work:
My investigative question is does microwaved water stunt plant growth? I was interested in learning more about this topic because I wanted to know if microwaves can put chemicals in your food causing you to not get all of the nutrients from the food. The purpose of my experiment is to see if water set to a boil on the stove, water set to a boil in the microwave, or water from both the microwave and stove will make plants grow more, also to see if the microwave puts bad chemicals into your food. My independent variable is the type of water used. My dependant variable is the height of the plant. My hypothesis is, if plants are grown with microwaved water then they will not grow as much as plants grown with water heated from the stove.
I will be doing my science fair project on what ingredient will best activate a package of dry yeast. Dry yeast was developed by Fleischmann's company during WW11, so that people in the army did not have to get their yeast refrigerated, while still being able to easily make bread. Activating means to cause an act or function. Activating dry yeast makes the yeast makes it thick, bubbly, and foamy. It will be an off white in color and sometimes appear to be more of a light brown. Yeast is single-celled fungi. There are roughly over 600 species of yeast that we know of. Many of which can be distributed greatly in nature. Where exactly can we get yeast? This may be a common question one may have about yeast. Yeast can be exudates in plants. This includes cacti and the sap of the plants. Also, yeast can be found in the skins of fruits like grapes, apples, and peaches. You may also get yeast from the skin of berries.
With this experiment, I will test people of different ages and analyze what picture they consider to be more attractive, the edited ones or the individual photos. I will be using photoshop to edit these pictures and create composite faces with
(d) Blue. My answer is (d) (3:58:19 PM) 2. Which photon has the lowest amount of energy? (a) Infrared.
Radiation The combined process of emission, transmission, and absorption of heat energy traveling through electromagnetic waves from an area of higher heat energy to an area of lower heat energy. A good example is the transfer of solar heat from the sun to the earth. The heat energy is moved through waves from an area of higher temperature (sun) to an area of lower temperature (earth).
The topic is the differences between bar soap and synthetic detergent. In this experiment the scientists will be testing if detergent remove stains better than soap or it's if the other way around. The independent variable will be Dial liquid soap and Tide detergent. The dependent variables will be the degree of cleanliness after washing the stains off and the unit that will be used are photons measured with a spectrophotometer. The constants are going to be: same amount of soap being used, same type of fabric (white shirt, brought from the same store, same price and brand.) during the will also use the same amount of water in order to wash the pieces of shirt and they will be left drying
Growing up I knew one day I would be a part of a science fair. From watching television shows like Arthur, or The Magic School Bus, and reading dozens of books, it was always a dream of mine to be a part of one, and maybe even win. By the time I entered the third grade I was finally old enough to participate in an actual science fair. I titled, my project “Water You Saving?,” it explained how we as a community can save water, because at the time California experienced a massive drought, much like this year. I researched different methods about how people can save water, except the only example I can remember is that 90% of toilets are extremely inefficient and waste gallons of water everyday. My family and I took tours at the Lawrence Berkeley
The purpose of my science fair project is to show that kids are more than just their labels. At the beginning of my project I did research on labels and how they affect students at school and at home. Later on I made a 2 test which one was visual and the other was read out loud. I tested on as much people as I could. After a couple of weeks I analyzed my data and divided what into groups. I did the same tests on every person no matter age or grade.The results I got were very impressive students that were looked as the “bad kids” or “not smart” kids, got the best grades on the test versus the kids that are seen as the smart ones got lower scores. These results show that students are more than the labels given there's is more to us than what
Temperature is a degree of heat or cold that and be measured by using thermometers. It is also a measure of the speed of atoms and molecules movement. Temperature is measured in degrees on the fahrenheit and celsius scales. Fahrenheit is a scale of temperatures in which 32° represents the melting point of ice and 212° represents the boiling point of pure water. Celsius is a scale of temperature in which 0° represents the melting point of ice and 100° represents the boiling point of water. Kelvin is a thermodynamic temperature scale based upon the efficiencies of ideal heat engines.
For the first time in high school, I can officially say that science fair ran smoothly. Coincidently, it’s the first time I worked with a partner on the experiment. While I generally work better alone, when it comes to tactile projects, I struggle. I have always had trouble when it comes to hands-on activities and I usually require a lot of practice before I am able to do it successfully. Science fair is no different. With the help of a partner this year, I felt I could do what I am best at, while my partner did what he is best at, thus producing a much better project than if we worked alone. We built off of each other’s strengths to make it happen. For example, he leaned on me for what to add in the workbook and the lab report, while I leaned
it no matter what it is. Take the elements for example. Earth, wind, water, and fire. These
The freezing point of water in Fahrenheit is 32 degrees, in Celsius it is 0 degrees.