What I'm learning in science

I'm learning the layers and functions of the skin. The four main functions are:

1. Skin cools your body with sweat from your sweat glands.
   
2. It protects your bones and major organs-if it weren't for your skin, you'd constantly break your bones every time you tripped. Another reason it's important it protects your bones is that your bones contain calcium.
3. It warms your body.
4. It senses things such as extreme heat-say you touch a hot pan-and sends a message to your brain for you to let go.

There are many, many layers of skin, but the main layers are the dermis, the epidermis, and the fatty glands directly below them. To keep your skin healthy, eat a balanced diet, cleanse your skin daily, and get lots of vitamin D.

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