I. Science fair question
How does temperature affect the rate at which UV beads lose their color?
II. Background Research Did you know that most of the ultraviolet light produced by the Sun is blocked by the atmosphere, but some light does still reach Earth? Ultra violet light can be detected using electronic devices. Important terms that will be discussed in this paper are ultraviolet light, photochromism, chemical reactions, and absolute zero. Relating to electromagnetic radiation having wavelengths shorter than those of visible light but longer than those of x-rays. Ultraviolet radiation is emitted by the sun and some of its absorbed by the sun and some of it is absorbed by the o-zone in the atmosphere. Too much exposure to ultraviolet light can be can lead to sun burn, skin cancer, or cataracts (The American Heritage Student Science Dictionary 351). In general a factor that increases the number of collisions between particles will increase the reaction rate and the factor that decreases the number of between particles will decrease the chemical reaction rate. (Chemistry: Hill pg.36) A general thumb for most chemical reactions is that the rate at which the reaction proceeds will approximately doubles for each 10 degrees Celsius increases the temperature. Once the temperature …show more content…
This is commonly seen in transitional lenses, these lenses are similar to eyeglass lenses that turn tinted in the light and are regular in indoor climates. A photochromic substance exhibits a change in color under certain types of light, an example of this is, this phenomenon occurs do to the absorption characteristics of molecules material in response to wavelength radiation different materials may respond with their own characteristic transmition spectra that transforms in the presence of light variations.
How does temperature affect the rate at which UV beads lose their color?
II. Background Research Did you know that most of the ultraviolet light produced by the Sun is blocked by the atmosphere, but some light does still reach Earth? Ultra violet light can be detected using electronic devices. Important terms that will be discussed in this paper are ultraviolet light, photochromism, chemical reactions, and absolute zero. Relating to electromagnetic radiation having wavelengths shorter than those of visible light but longer than those of x-rays. Ultraviolet radiation is emitted by the sun and some of its absorbed by the sun and some of it is absorbed by the o-zone in the atmosphere. Too much exposure to ultraviolet light can be can lead to sun burn, skin cancer, or cataracts (The American Heritage Student Science Dictionary 351). In general a factor that increases the number of collisions between particles will increase the reaction rate and the factor that decreases the number of between particles will decrease the chemical reaction rate. (Chemistry: Hill pg.36) A general thumb for most chemical reactions is that the rate at which the reaction proceeds will approximately doubles for each 10 degrees Celsius increases the temperature. Once the temperature …show more content…
This is commonly seen in transitional lenses, these lenses are similar to eyeglass lenses that turn tinted in the light and are regular in indoor climates. A photochromic substance exhibits a change in color under certain types of light, an example of this is, this phenomenon occurs do to the absorption characteristics of molecules material in response to wavelength radiation different materials may respond with their own characteristic transmition spectra that transforms in the presence of light variations.