All the parts of me work together, helping each other. My lungs take air into my body. My brain, muscles, and bones help my lungs. In order to move, my bones need help. My muscles help my bones...
My sense of touch
The nerves in my back are farther apart than the nerves in my fingers. My friend touches my back with two unsharpened pencils. Both pencils touch my back at the same time. But I can feel only one...
How I taste food
Yum! There's ice cream for dessert! Ugh! I have to eat my beets first. I know what I like and what I don't like because I can taste my food. My tongue rolls each bite around my mouth. I taste my...
How I smell food
I smell chocolate cake. The smell is really tiny bits that have broken away from the cake and float in the air. The bits are called molecules. The molecules are too small to see. But they can't fool...
My nose
I can see part of my nose, the part that sticks out from my face. The holes in my nose are called nostrils. Hairs grow in my nostrils. The hairs help keep dust out of my nose. But I can't see all of...
Keeping my balance
My inner ear does more than help me hear. It has another big job it helps me keep my balance. It helps me stay upright when I am moving. And it helps me stay upright when I am standing still. ...
Sometimes ears need help
In quiet rooms I can hear the softest sounds---the tick-tock of the clock, my baby sister's breathing while she sleeps. In noisy places I have to listen harder to hear what people say. Sometimes I...
My ears
People talk to me. Car horns honk. Dogs bark. Music is somewhere nearby. I know about these sounds because my ears and my brain work together. My ears turn sounds into nerve messages. Nerves in my...
Sometimes eyes need help
I see a horse in a field. If I can't see the horse clearly, my eyes need help. Eyeballs should be nearly round. People whose eyeballs are too long are nearsighted. They look at the far-off horse,...
Inside my eye
My eyes and my brain work together. Here's how. When I look at a thing, the light that bounces off of it enters my eye through a clear covering called the cornea. The light touches nerves at the...
