You've seen your own blood, when you have a cut or a scrape. You can see the veins in your wrist, and you've seen the scab that forms as a cut heals. But do you know what blood does for you? Without blood, you couldn't play, or grow, or learn. That's because just about every part of your body needs blood, from your muscles to your bones to your brain. How does your body use blood? Read and find out

Ages 10 - 14

Take a deep breath and then let it out. Did you feel your chest rise and fall? That is actually your lungs filling with oxygen and then pushing carbon dioxide back out when you exhale. Without your lungs and your entire respiratory system, the rest of your body wouldn't receive the oxygen you need to survive. To give your body the oxygen it needs, you breathe twenty times every minute. You breathe more than twenty thousand times each and every day. Acclaimed science writer Seymour Simon explores the important journey that air takes in and out of your lungs.

Seymour Simon has written over 200 award-winning science books about animals, anatomy, astronomy, earth science, and vehicles

• Six tiny muscles hold each eyeball steady in the sockets of your head.
• The ears contain the three smallest bones in the body: the hammer, anvil, and stirrup.
• In addition to hearing, ears help you to keep your balance.
• Without the brain, we wouldn't be able to see or hear.

The human brain is behind everything you do. From taking your first step to creating the computer, this vital organ gives humans the ability to learn and adapt to an ever-changing world. Learn all about your amazing, versatile brain with award-winning science writer Seymour Simon.

By the time you finish reading these words, your heart may have beaten up to 50 times. As you walk, eat, and sleep, your heart continually pumps trillions of blood cells through thousands of miles of blood vessels inside your body. You may not be able to see your own heart, but all you have to do is look inside this book to see how this amazing organ works. Acclaimed science writer Seymour Simon brings you this indispensable guide that takes you through the heart, from atrium to capillary and back again.

Hands

Clapping, waving, pushing, pulling, scratching, digging, tickling--how many ways do you use your hands every day? Find out how important your hands are

When you were a baby, you didn't have any teeth at all. Then as you grew, your teeth started to come in. First one, then two - and finally, twenty teeth in all

But you won't keep these teeth forever. First one, then two, will wiggle loose. Maybe you've lost some of your first teeth already. When the little teeth come out and the big teeth come in, everyone can see - you're growing up.

The food we eat helps our bones and muscles, skin and hair, teeth and toenails grow bigger and longer and stronger. Inside and outside, we grow and grow without even knowing it

Night and day, whether you're asleep or awake, your heart is always beating. Read and find out how your heart works and how to keep it healthy.

What happens to food when you eat it?

Read and find out about your digestive system and how it turns food into energy your body can use.

Ka-choo Brrr. Yawnnnn.

Have you ever wondered what makes you sneeze when you're in a dusty room? Or shiver when you get out of the bathtub? Or yawn when you're tired? All of these actions are reflexes. Your body makes them happen even though you don't tell it to.

Budding young scientists will be amazed as Melvin Berger and Paul Meisel reveal the mysteries behind the reflexes that happen in our bodies every day and offer fun-filled experiments to try on family and friends. Let's Read and Find Out Science, Stage 2.

Many parents live in fear of the day their child asks that question--which inevitably happens, often as early as the preschool years. Here is a picture book designed especially for young children who are becoming sexually aware but aren't ready to learn about sexual intercourse. Written with warmth and honesty, Amazing You presents clear and age-appropriate information about reproduction, birth, and the difference between girls' and boys' bodies. Lynne Cravath's whimsical illustrations enliven the text, making this a book that parents will gladly...