Curated OER
Skin
In this skin worksheet, 9th graders list the five main functions of the skin. Then they explain why a runner sweats and how many sweat glands there are in the body. Students also describe what occurs when the epidermis is slightly injured.
TED Talks
Ted: Ted Ed: How Do Scars Form?
It's hard to escape childhood without racking up a few scars. Why do these leftover reminders of a painful cut or crash look different from the rest of our skin? And why do they stick around for so long after the incident that caused...