Forces and motion are at work all around youwhen you kick a ball, ride a bike, or drop a book. But what exactly are forces? And how do they make things move? For thousands of years, scientists have been testing hypotheses about forces and motion and learning from the results of their experiments. These lead to more questions: Why do you speed up when you're biking down a hill? Why are heavier objects harder to pull? Why doesn't the moon float off into space? The answers may surprise you! Find out how forces and motion are at play with everything on Earth and beyond.
|Publisher:||Lerner Publishing Group|
|Series:||Key Questions in Physical Science (Alternator Books ) Series|
|Product dimensions:||6.50(w) x 1.50(h) x 9.50(d)|
|Lexile:||920L (what's this?)|
|Age Range:||9 - 11 Years|
About the Author
Karen Latchana Kenney was born near the rainforests of Guyana, but moved far north to Minnesota at a young age. She graduated from the University of Minnesota with a bachelor's degree in English and has been writing and editing since. She has worked as an editor at an educational publishing company, but is now a full-time freelance writer and editor in Minneapolis, Minnesota. She has written more than 70 books on all kinds of subjects: from arts and crafts to biographies of famous people. Her books have received positive reviews from Booklist, Library Media Connection, and School Library Journal. When she's not busy writing, she loves biking and hiking with her husband and young son in the many beautiful parks of the state. Visit her online at http://latchanakenney.wordpress.com/.
Table of Contents
Introduction: Ultimate Bounce 4
Chapter 1 Where Does Movement Come From? 6
Chapter 2 What Keeps the Moon from Floating into Space? 12
Chapter 3 What Makes Things Move? 18
Chapter 4 How Does a Rocket Escape Gravity? 25
Try It! 28
Further Information 31