ULTRAVIOLET

WAVELENGTH

• The wavelength of Ultraviolet light is about the same size as molecules.
• Ultraviolet wavelengths are shorter than those of visible light.

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USES OF ULTRAVIOLET LIGHT

• Ultraviolet light is used in tanning beds by UV that emit UV radiation
• This radiation win what causes your skin to tan.
• UV lamps are also used by dentist and doctors to clean medical tools
• Lights kill harmful bacteria by damaging their DNA
• It does so by creating a reaction between molecules in the bacteria

INTERESTING FACTS

• UV lamps are used to check currency for authenticity
• Many things invisible to the human eye become visible
• UVB exposure can cause your skin to produce more Vitamin D
• Humidity can increase the effects of UV lights

UVA AND UVB

• UVB ray's penetrate the top layers of skin & cause most sunburns
• UVA rays affect deeper layers of skin & cause rashes and allergic reactions
• UVA rays are longer and can ages us
• UVB are shorter waves and can burn us
• UVB rays are more harmful in large doses they have the potential to damage DNA

SOURCES

• Science.hq.nasa.gov
• Webmd.com
• ccohs.ca
• Scientificamerican.com
• Streetdirectory.com