What does your skeleton do?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 ma
Some dinosaurs were big. How big? As long as four school buses in a row, as heavy as sixteen elephants.Some dinosaurs were small. How small? Read and find out!
A house is a home for you, a nest is a home for a bird, and a cave is a home for a bear. But for some animals a shell is a home. Snails and turtles and crabs and clams all have shells that act as thei
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. Before the next thunde
If you lived on the moon, you would have two straight weeks of daylight and then two weeks of night! On earth, we have both day and night in just twenty-four hours, thanks to the quick rotation of our
Turtles are among the oldest living creatures in the world. They have been on earth for nearly 200 million years!In Look Out for Turtles! readers will discover why these creatures have survived so lon
After rain comes down, the sun comes out and dries the puddles. But the water isn't gone. The heat from the sun has turned it into water vapor-it has evaporated. Eventually, this moisture in the air c
Coral reefs are living things made up of tiny coral polyps and are unique, delicately balanced ecosystems that provide homes to hundreds of species of plants and animals, but environmental threats hav
There are forces at work whenever you throw a ball, run up the stairs, or push your big brotheroff the couch. Want to learn more about the forces around you? Read and find out!
How does a magnet work? Why does a magnet pick up a paper clip but not a leaf or a penny? How can the whole world be a magnet? Read and find out more about how magnets work!Franklyn M. Branley's class
When it's not windy, it can be easy to forget about air. But air is everywhere–it fills your house, your car, and even your empty milk glass. In fact, a regular room holds about 75 pounds of
With colorful illustrations and engaging text, Phones Keep Us Connected is a fascinating look into the science, technology, and history of how phones work!Before telephones were invented, there w
