Effect Of Sun Protection Factor (SPF) Levels On Colored Paper In The Sun by Sophie Granse https://padlet.com/sg55840/vk87v8to11ka Science en-us 2017-06-05 17:57:34 UTC 2024-03-14 05:52:37 UTC hello@padlet.com Hyposthesis sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175257304 As the SPF level increases, the suns effect on colored paper will decrease]]> 2017-06-05 18:06:28 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175257304 Problem Statement sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175257605 What is the effect of different levels of SPF Protection on colored paper]]> 2017-06-05 18:08:34 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175257605 Bibliography 1 sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175258166 2017-06-05 18:12:15 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175258166 Materials sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175258806
  • Colored paper (8x11)
  • ⅛  tsp of the following sunscreens
  • SPF 15
  • SPF 30
  • SPF 50
  • Pane of glass (13x11)
  • Dry erase marker
  • Sunlight

    • ]]>     2017-06-05 18:15:37 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175258806     Procedure sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175259027 1. Fold one piece of blue paper into fourths
    Create a square inside each section that is 2x2 inches
     2. Place the glass pane on top of the colored paper
    Label the three SPF levels and the control on the glass using the dry-erase marker
    3. Measure ⅛ tsp of each SPF and put each SPF on the labeled section it matches
    4. Apply the SPF to the glass over the square as if you were applying it to your skin
    5. Leave the paper with the glass on top of it for 10 hours in direct sunlight
    6. After ten hours, remove the glass
    7. Take a picture of the paper to note the different effects of the control and sunscreen on the paper

    ]]>     2017-06-05 18:17:12 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175259027     Variables sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175438124
    • Independent variable: sunscreen
    • Dependent variable: colored paper
    • Controlled variables: direct sunlight, amount of sunscreen, color of paper, length of time in sunlight, size of section the sunscreen covers 
    ]]>     2017-06-06 17:46:39 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175438124     Observe and record data sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175438341 7:00 am: No observable change. It just has been exposed to sunlight
    2:50 pm: 
    • The control faded the most and had no SPF protection.(65%) Exposed to direct sunlight.
    • 15 SPF faded about 45%. The lotion has almost completely dissolved from the glass.
    • 30 SPF faded about 40%. The lotion became clear but was still there.
    • 50 SPF faded about 15%. The lotion was still thick and white on the glass.
    5:25 pm:
    • The control is still faded the most and still has no SPF protection.(75% to 80%) Exposed to direct sunlight for over ten hours 
    • 15 SPF faded about 50%. Lotion is clear and almost dissolved.
    • 30 SPF faded about 55% to 60% percent. The lotion is mostly gone from the glass it has seemed to dissolve rapidly in the heat of the day. 
    • 50% SPF faded about 15% to 20%. The lotion has remained  thick and white throughout the day
    ]]>     2017-06-06 17:48:01 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175438341     Results sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175438545 The control has the greatest amount change in color/fading.
    The 15 and 30 SPF has similar results in color change/ fading (50% to 60%).  It should be noted that the 30 SPF lotion was a generic brand and the least expensive.
    The 50 SPF had the least amount of change in the color change/ fading.(15% to 20%)
     
    Overall the sunscreen with the greatest protection was the 50 SPF with ⅛ tsp of sunscreen on a 2x2 square. The thing that surprised me is that the 30 generic had a higher percentage than the 15 SPF in color change/ fading.

    ]]>     2017-06-06 17:49:03 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175438545     Conclusion sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175438871 My hypothesis was supported by the 50 SPF, but not by the generic 30 SPF throughout the ten hours of sunlight. The effect might have changed if I had taken enough time so that the amount of sunscreen was exact. In the future I will make sure that the measurements of the sunscreen or more accurate. It would be interesting to see if all name brand sunscreens will have better protection than the generic brands.  

    ]]>     2017-06-06 17:50:36 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175438871     Bibliography 2 sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175439610 http://www.imb.uq.edu.au/download/large/Bioessay.pdf

    ]]>     2017-06-06 17:55:10 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175439610     Bibliography 3 sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175439787 http://www.dictionary.com/browse/pigment

    ]]>     2017-06-06 17:56:19 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175439787     First picture of the colored paper sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175725847 7:00am]]> 2017-06-08 13:10:20 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175725847 After almost ten hours this is what the colored paper looks like sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175726080 5:25pm]]> 2017-06-08 13:11:34 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175726080 Bibliography 1 sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175732779 https://www.loc.gov/rr/scitech/mysteries/colors.html

    ]]>     2017-06-08 13:43:45 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175732779     Graph of Results sg55840 https://padlet.com/sg55840/vk87v8to11ka/wish/175906251
    ]]>     2017-06-09 17:30:31 UTC https://padlet.com/sg55840/vk87v8to11ka/wish/175906251