Knight in Shining…Newspaper- Measure the surface area of our skin

Did you know that your skin is the largest organ in your body?  On average, our skin weighs about 8-10 pounds!  In class, we estimated the surface area (the total of all the areas that our skin covers) of a fellow student by covering them with newspaper and measuring the area of each section.

Here are some pictures from this fun and (slightly!) chaotic class:

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Other facts about skin:

  • The outer layer of your skin, the epidermis, is thickest on the soles of your feet and the palms of your skin(1.5mm) and it is thinnest is on your eyelids (0.05mm)
  • The color of your skin depends on the amount of melanin which is a pigment.  Small amounts of melanin = lighter color skin; Large amounts of melanin = darker color skin
  • Sagging skin is the result of a lack of elasticity in the skin which is provided by two proteins: collagen and elastin.  This can happen from age, sun exposure, and weight loss.
  • A large amount of the dust in your house is due to your dead skin cells!
  • Want to see what happens when our skin is cut or what happens to our skin as we age?  Check out this link on the National Geographic website.
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