1. Skin

3. 3 Layers of the Skin Epidermis-Tough part of your body that acts like a protective shell. Ask: Can you think of another animal that has a protective shell? Skin is critical to the body the epidermis is the part of your skin you can see. Ask students to look down Look down at their hands for a minute. Even though you can't see anything happening, your epidermis is hard at work. At the bottom of the epidermis, new skin cells are forming but your outside is made up of dead skin! Dermis The dermis contains nerve endings, blood vessels, oil glands, and sweat glands. It also contains collagen and elastin, which are tough and stretchy. The nerve endings in your dermis tell you how things feel when you touch them. (Connect back to explore activity) The third and bottom layer of the skin is called the subcutaneous (say: sub-kyoo- tay-nee-us) layer. It is made mostly of fat and helps your body stay warm and absorb shocks, like if you bang into something or fall down.

4. Layers of Skin

5. http://www.brainpop.com/health/bodysystems/s kin/ http://www.brainpop.com/health/bodysystems/s kin/

6. Activity Time