Super+Smart+Science+Challenge

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This is your portal to participate in our class discussion. Read the Cool Fact and the Teaser below. Then, once you have read the prompt - click on the
**__discussion tab__** above to post your comments.  You can you then build upon the ideas of others to further and deepen the conversation. = = = __Cool Fact:__ = = = =Sunburn is a visible reaction to the sun's invisible ultraviolet rays. Ultraviolet radiation can also cause invisible damage to the skin. In fact, skin cancer is the most common kind of cancer in the United States and exposure to the sun is the No. 1 cause for skin cancer.= = = = __Teaser:__ = =Joanna doesn't like to spend a lot of time outside on sunny days. she doesn't want to get sunburned because she has heard how it contributes to skin cancer. One cloudy day, her friends convinced her to go to the park for a picnic. The played by the lake all day. When she got home that evening, Joanna looked in the mirror and realized that she had goten the worst sunburn of her life! How was it possible that she had gotten bady burnt on such a cloudy day?=