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What is a cell ?

All living things---plants, animals, and people---are made of cells. I am made of cells. A cell is the smallest living part of me it is possible to imagine. A cell can be long, short, thin, fat,...

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I eat food

I use my tongue and teeth when I eat. These help me grind up and mix my food. I use muscles, too, when I eat. I use muscles in my jaws, throat, esophagus, stomach, and intestines. Special organs...

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I breathe

I breathe in and out through my nose and mouth. Fresh air is made warm and clean in my nasal cavity. The air goes down my trachea, through my bronchial tubes, and deep into my two lungs. Used air...

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My bones

My skeleton grows up with me. When I am grown, I will have about 206 bones. Bones give shape to my body. Bones store up minerals to be used as my body needs them. New blood cells are made inside...

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My muscles

My body is filled with muscles. Deep inside of me, muscles help my body work properly. Muscles help food move through my body. And muscles help air move in and out of my lungs. Some of my muscles...

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The outside of me

My skin is one of the organs of my body. Some waste products are carried out of my body through my skin when I sweat. And my skin helps keep my body at an even temperature. All skin is tough, but...

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People projects

Materials ■ clay (hardening, modeling, chemical, or kitchen) ■ toothpick or other pointed tool Read Clay (pages 108-110) before you decide what kind of clay you want to use for this project. 1...

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Turtle pinata

Materials - balloon (large) - candy (wrapped) - glue (white) - paintbrushes - papier-mache (pulp and strip) - string - tempera paint - toilet-paper tubes (three) A pinata is a papier-mache...

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