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  #1  
Old 10-10-2005, 11:15 AM
hcastro500 hcastro500 is offline
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Question effect of sunblock on hot dog

My son and I are trying to recreate an experiment we read about. Basically, two hotdogs are placed under a sun lamp. One of the two is coated with sunblock. After an hour the uncoated hotdog shrivels and the coated one remains the same. We attempted to recreate this result by placing the hotdogs in direct sunlight on a hot sunny day from 9:30am until 12:30pm. We expected a similar result because the hotdogs were exposed to the entire spectrum of the sun's rays, especially UVA and UVB rays. However, the difference between the the two was negligible. We used spf 30 sunblock. Why is there not a more noticable difference? The sun lamp does not emit any UVB rays and very little UVA rays. What could have caused the hotdog in that experiment to shrivel? Should we be using another type of meat product? Please help.

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Old 10-10-2005, 01:57 PM
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Question Hi

are u guys going to eat them

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Old 02-12-2006, 05:07 PM
yvette carreon yvette carreon is offline
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Cool affect of sunscreen on hotdogs

hi im yvette,
my son and i also read that article and are trying to recreate the same project and came up with the same problem as you.
it looks like you did this a while ago did you figure it out and can you help us at all?
thanks
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Old 10-09-2006, 04:06 PM
saxescience saxescience is offline
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Default sunscreen on a hotdog

We wanted to try this experiment but it does not seem to work, we used a heat lamp and and infra red lamp. Any suggestions?
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Old 10-12-2006, 02:21 PM
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Question

that sounds like a good idea
im only 10 and i need a science project!
can i use yours?
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Old 10-12-2006, 02:25 PM
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Default

This is a good project. First time I have ever heard of this. I think I will try this. But, I suggest you guys do this more, but with different sunblock, and not out in the outside, because then there will be too many variables to control. Go to Petsmart or something and but a basking light for a lizard. Then try the experiment and see what you come up with!
Thanks!

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