Our skin is like (? ) that we live in. Inside the bag our bodies are mostly (? ). Our water is like the water in the sea. It is very (? ). Also, like the ocean, we can lose our (? ). The wind and the sun could take it away. Our bag of skin keeps our body's ocean from drying up.
Our skin keeps out (? ). Too much sun can hurt us. Skin also keeps out (? ). That's important because some kinds of dirt can make us (? ). Our skin (? ) things. It feels warm things, cold things, things it touches, and things that (? ) it. A campfire feels (? ). A snowball thrown in our face feels (? ) and hurts. A hug is the touch of another person's skin on our own.
Our hair is a special kind of (? ). It helps keep things out of our eyes, ears, and nose. Hair is also good for keeping us (? ). When we get goosebumps, our body hairs stand up. Then the hairs hold air close to our skin like a thick blanket. Hair keeps animals (? ), too. Some animals have more hair than others, so they have a better blanket for (? ) weather.
Our nails are another special (? ), which are like very (? ) skin. They help keep our fingers and toes from getting (? ). Our nails aren't as strong or sharp as the nails that animals have. But they are good for scratching backs and picking up coins.