CK-12 Foundation
Ck 12: Life Science: Skin
[Free Registration/Login may be required to access all resource tools.] Did you know that you see the largest organ in your body every day? You wash it, dry it, cover it up to stay warm, and uncover it to cool off. Yes, your skin is your...
CK-12 Foundation
Ck 12: Fourth Grade Science: Life Science: Skin
[Free Registration/Login may be required to access all resource tools.] Describes the layers and functions of the skin, and explains what you can do to help keep your skin healthy.