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  • Home
  • Life Science Kits
    • Seeds
    • Gardening
    • Fish
    • Sharks
    • Insects
    • Plants
    • Human Body >
      • Heart and Lungs
      • Brain
      • Skin
      • The 5 Senses
  • Earth Science Kits
    • Water
    • The Sun
    • The Moon
    • Recycling
    • Rocks and Minerals
    • Soil and Erosion
  • Physical Science and Engineering Kits
    • Buildling Bridges
    • Construction
    • Light
    • Magnets
    • Ramps
    • Sink and Float
    • Sound
    • States of Matter
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Skin

The skin is the largest organ of the body, regenerating itself every 27 days. Weighing an average of six pounds,  it acts as a waterproof insulation from the outside (sunlight, chemicals, and temperature). It also acts as an antibacterial barrier and emits Vitamin D in order to convert the vitamin to calcium to help maintain bones. It aids in mobility and is jam-packed with nerves to keep the brain in touch with what is happening in the world around it. This amazingly diverse organ fulfills an array of responsibilities in the body and it the most of what we present to the world, making it amazingly versatile.
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Skin Facts

The Integumentary System pt 1

1.The average adult has approximately 21 square feet of skin, which weighs 9 lbs and contains more than 11 miles of blood vessels.
2. Your skin is home to more than 1,000 species of bacteria
​3. Your skin is its thickest on your feet (1.4mm) and thinnest on your eyelids (0.2mm)
4. The average person has about 300 million skin cells. A single square inch of skin has about 19 million cells and up to 300 sweat glands.
5. Skin that is severely damaged may try to heal itself by forming scar tissue, which is different from normal skin tissue because it lacks hair and sweat glands
6. Your skin has at least five different types of receptors that respond to pain and touch
7. Some of the nerves in your skin are connected to muscles instead of the brain, sending signals (through the spinal cord) to react more quickly to heat, pain, etc

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What is Skin?

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Children's Literature


Concept Planner

Check out the Skin Concept Planner below!
skin_concept_planner.docx
File Size: 21 kb
File Type: docx
Download File

Listen as Crash Course takes on the Integumentary System in a two part series.
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The Integumentary System pt 2

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Words to Know

Integumentary System the organ system that protects the body from various kinds of damage, such as loss of water or abrasion from outside. The system comprises the skin and its appendages (including hair, scales, feathers, hooves, and nails)
Epidermis the outer layer of cells covering an organism, in particular
Dermis the thick layer of living tissue below the epidermis that forms the true skin, containing blood capillaries, nerve endings, sweat glands, hair follicles, and other structures
Subcutis superficial fascia, is the lowermost layer of the integumentary system in vertebrates.
Regenerate to replace lost or injured tissue
Melanin a dark brown to black pigment occurring in the hair, skin, and iris of the eye in people and animals. It is responsible for tanning of skin exposed to sunlight.
Elastin a protein forming the main constituent of elastic connective tissue, found especially in the dermis of the skin.
Collagen the main structural protein found in skin and other connective tissues, widely used in purified form for cosmetic surgical treatments
Sweat Gland regulates body temperature. When internal temperature rises, the eccrine glands secrete water to the skin surface, where heat is removed by evaporation.

Get the full word list here.
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Additional Resources

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​Check out Ohio State's Dermatology School within the Wexner Medical Center! 

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​COSI holds a series of interactive, science-based exhibitions geared towards children.
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​Great Lakes Science Center, located in Cleveland, Ohio, is another science-based education center geared towards all ages.

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Want more in depth content knowledge? 
Go to the National Science Teachers Association for articles, books and free online modules. you do not need to be a member to access many of the resources.

NSTA
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