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Lesson - Get Sun-Certified Quiz

GOALS
To assess students knowledge of sun safety; to give students an opportunity to measure their progress

BACKGROUND
With over one million new cases diagnosed each year, skin cancer is the most common cancer in the United States. Since effective sun protection is practiced by less than one-third of U.S. youth, childhood is a crucial period to instill correct awareness and prevention techniques. Just one blistering sunburn during childhood can double the risk of certain skin cancers later in life. Even tanning is hazardous, as it can increase the number of moles and prematurely age the skin. More detailed background about UV radiation and the UV index follows click here.)

PREP
Ask students what they know about the sun and how it can affect their health. Write responses on the board. Print out and distribute the Get Sun-Certified Quiz student reproducible. (Click here for the pdf reproducible*.) Please note that an internet version of this quiz is also available within the Kids area of this Web site.

ACTIVITY

  1. Have students complete the quiz. Then collect it and tell students that they will correct the quiz after they have completed the sun-safety activities.
  2. After completing the sun-safety unit, redistribute the quizzes and ask: Would you answer any questions differently now?
  3. Have students use the answer key below to check their answers.

WRAP-UP
Review the Get Sun-Certified Quiz answers (the answers worth three points are correct). Read aloud the questions and number of points each answer receives. Ask students to add up their points to see if they are Sun-Certified! (Click here for the Sun-Certified diploma.*)

Points for each answer: 1) a=3, b=2, c=1; 2) a=1, b=3, c=2; 3) a=1, b=2, c=3; 4) a=2, b=3, c=1; 5) a=3, b=2, c=1; 6) a=1, b=2, c=3; 7) a=3, b=2, c=1; 8) a=2, b=1, c=3.

EXTENSION: Solar Noon Shadows
Introduce the concept of solar noon.
The earth's exposure to UV rays are strongest between 10 A.M. and 4 P.M. It peaks every day between 11 A.M. and 1 P.M. (solar noon). At this time, the travel path for UV waves is short and direct, and it is less hindered by air molecules and particles that normally scatter UV radiation at lower angles.

Use a flashlight to represent the sun's rays, and shine it at a medium-size object to make long and short shadows. Explain that when the sun is low in the sky (early morning or evening) shadows will be longer. Point out that while you should always protect your skin, it is especially important when the sun is high. Have student pairs measure each other's shadows from head to toe. Repeat several times over the course of a day, charting times and measurements. Ask: When are your shadows the shortest? (This is solar noon.) How does the sun's angle affect shadow length? (High angle=short shadow. Low angle=long shadow.)

*If your computer does not already have Adobe Acrobat Reader, you may download it free here.

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