What Makes Day and Night
ISBN 0064450503 Harper Paperback 
WB Price:$10.45
A simple explanation of how the rotation of the earth causes night and day.

Why I Sneeze, Shiver,Hiccup and Yawn
ISBN 0064451933 Harper PB WB Price: $10.45
Learn about your nervous system and how relexes work.

Flash, Crash, Rumble, and Roll
ISBN 0064451798 Harper PB WB Price: $10.45
Did you know that lightning bolts can be over a mile long? Or that they may come from clouds that are ten miles high? Storms can be scary, but not if you know what causes them. It also gives tips on what to do when a lightning storm occurs.

A Drop Of Blood
ISBN 006009110X Harper PB 
WB Price: $10.45
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? 

Follow The Water From Brook To Ocean
ISBN 0064451151 Harper Paperback (4 to 9)
WB Price: $10.45
Water is always flowing. It runs down your street after a rainstorm, or trickles in a brook near your house. The brook may join a stream, which feeds into a river, which winds its way to the ocean. What a journey! You can follow the water on its long journey to the ocean and learn how water shapes the earth, how people use water, and why it's important to keep our water clean.

The Skeleton Inside You
ISBN 0064450872 Harper Paperback (4 to 9) WB Price: $10.45
Your skeleton helps you leap, somersault, and touch your toes -- without it, you would be as floppy as a beanbag! There are over 200 bones living and growing inside you that make up your skeleton. There are also ligaments and joints that hold your bones together, and cartilage in your bendable parts like your ears and your nose. 

What Will The Weather Be?
ISBN 0064451135 Harper PB WB Price: $10.45
Meteorologists today know more than ever before. They use weather maps, satellites, balloons, and planes to measure temperature, air pressure, wind direction, and speed. But changes outside are not always predictable, because our weather depends on the air hundreds of miles away. Sometimes meteorologists tell us to take our umbrellas when we don't need them. Will it rain? Will it snow? Now even the experts know for sure.