overview
what does uv stand for
ultraviolet
what is are natural and artificial sources of uv
the sun, and tanning beds, Mercury vapor lighting (often found in stadiums and school gyms), Some halogen, fluorescent, and incandescent lights, Some types of lasers
what are signs of sun damage
Wrinkling, Pigmentation changes such as age spots, liver spots (solar lentigines) and freckles, Loss of skin tone (decreased elasticity, Rough, uneven skin texture, Broken capillaries (spider veins), usually around the nose and chest, Redness and blotchiness
Who is Joey’s agent?
Estelle
uv has a higher _________ and lower __________ than visible light.
frequency and wavelength
exposure to uv can lead to (three answers, give one)
skin cancer, and harmful effects on the eyes and immune system.
positive affects of uv rays
vitamin D
What form of self-defense does Ross try to teach Rachel and Phoebe?
Unagi
UV is divided into three bands(groups). What are they called?
uva, uvb, uvc
when is the uv index the highest (range)
10am to 4pm
true or false: uv rays are invisible
true
Rachel was in which sorority?
Kappa Kappa Delta.
UV radiation reaching the Earth’s surface is largely composed of what band?
uva
how to prevent uv exposure
limit midday sun when uv index is high, find shade, wear protective clothing, use a broad-spectrum sunscreen of at least 15 SPF – ideally higher– and reapply every 2 hours, avoid sunlamps and tanning parlous, as they are known to damage the skin and eyes.
what animal glows blue or green under UV light due to the presence of fluorescent chemicals.
Scorpions
What ingredient did Rachel mistakenly put in her Thanksgiving trifle?
beef
what factors affect the amount of uv that makes it to the earths surface (give 2)
ozone, water vapor, oxygen and carbon dioxide
what age is most crucial to prevent uv exposure
under 18(children)
what skin conditions can uv treat
vitiligo, eczema and psoriasis