UV Rays and the Sun

1
UV Rays and the Sun

• The sun produces both visible and invisible rays.
  The invisible rays, known as ultraviolet-A (UVA)
  and ultraviolet-B (UVB), cause most of the
  problems. Both cause suntan, sunburn, and sun
  damage. There is no "safe" UV light.

2
More about UV rays

• Harmful UV rays are more intense in the summer,
  at higher altitudes, and closer to the equator.
  For example, Florida receives 150 more UV than
  Maine. The sun's harmful effects are also
  increased by wind and reflections from water,
  sand, and snow. Even on cloudy days UV radiation
  reaches the earth and can cause skin damage. The
  UV index is a prediction of ultraviolet intensity
  in a given location. It can be found in the
  weather section of most large daily newspapers
  and some television weather forecasts

3
There are several types of light

• This is the suns light spectrum. The sun has
  three types of rays ultraviolet, visible, and
  infrared. The rays that cause damage to our skin
  are the ultraviolet rays.

4
How do I protect myself?

• It is important to protect yourself from the
  suns UV rays. Here are some ways to avoid skin
  damage
• UV rays are most powerful during midday, so try
  to stay indoors at this time.
• Wear clothes that will cover most of your skin.
• Wear sunscreen with at least a SPF of 15.
• Wear a hat to keep the sun off your face.
• Wear sunglasses to help protect your eyes.

5
How do I learn more?

• There is a lot to learn about UV rays and how
  they affect you. Try searching this website with
  interactivities, games, episode IV with
  Sunguardman and lots of cool information and
  facts.
• http//www.sunguardman.org/core.shtml

6
Bibliography

• http//www.sunguardman.org/core.shtml
• http//www.aad.org/pamphlets/SunSkin.html
• http//www.arpansa.gov.au/is_sunys.htm