Some of the words you have met in this book may be new to you. Many of them are words you'll meet again, so they are good words to know. Here are some of these words. Next to each word you are shown...
I go to the dentist
I go to the doctor when I am well so I can stay that way. And I go to the dentist when I am well so that my teeth will stay healthy. I sit in a special chair that goes up and down. It has a headrest...
What happens to my food ?
I swallow my food. It passes from my mouth down a tube called the esophagus. By the time I count to eight, the food enters my stomach. Now it is on its way to being changed so my body can use it. My...
My kidneys and other organs
In my back, just below my ribs, on each side of my spine, are my kidneys. My kidneys are about half as big as my heart. They are shaped like beans. Kidneys do an important job for my body---they...
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...
Atoms, electrons, forces
> Scientists called physicists use a lot of mathematics in their work. > As you can see, they use letters and symbols more often than numbers. On a desert in New Mexico, a large number of people...
Meet the triangle family
Every angle has one side that is open. If you close this open side, you'll have a closed shape with three straight sides and three angles. A shape of this kind is called a triangle ang guhl)....
Meet the angle family
People have names. And we give names to different kinds of animals. So why shouldn't angles have names? They do! Angles are named after the kind of corner they make. An angle that forms a square...
Shapes everywhere
Just as you live in a world of numbers, you also live in a world of shapes. Your house or apartment is full of shapes. Every corner forms a shape called an angle. Every door and doorway is a shape...
Ounces and pounds
In the English, or customary, system of measurement, bread, butter, people, and many other things are weighed in ounces and pounds. But why are there sixteen ounces in a pound? And why do ounce and...
