What is ADHD? What are the symptoms? How are the symptoms treated? Learn about this common behavioral condition that causes problems in three main areas: inability to focus or pay attention (inattention), being overly active (hyperactivity), and acting without thinking first (impulsivity). The disorder is most often identified in school-age children, but many of them will continue to have the condition as adults. The book includes practical si...
About 1, 000 tornadoes touch down in the United States every year. Severe weather scientists are studying these types of deadly storms to discover how more lives can be saved. TORNADOES: THE SCIENCE BEHIND TERRIBLE TWISTERS explains how tornadoes develop, describes the technology that help predict and track the storms, follows daring storm chasers and provides safety tips for surviving a terrible twister.
Although scientists increasingly can measure warning signs including tremors and other changes in the land, predicting when volcanoes will erupt is far from certain. This reluctant reader book explains why volcanoes remain dangerous natural disasters. VOLCANOES: THE SCIENCE BEHIND FIERY ERUPTIONS explores the formation of volcanoes, what causes them to erupt, the different types of volcanoes, and how scientists study them.
In August 2005, Hurricane Katrina struck the Gulf Coast of the United States. With powerful wind gusts, many inches of rain, and a deadly storm surge, the massive hurricane flooded large swaths of New Orleans. In HURRICANES: THE SCIENCE BEHIND KILLER STORMS the authors examine with step-by-step detail how these natural disasters develop, the scientific methods used to track and predict them, and the measures families should take to protect the...
With this easy-to-read book, children will discover the facts behind the seemingly magical conversions that transform a wooly caterpillar into a graceful butterfly and a swimming tadpole into a leaping frog. This book presents a well-illustrated look at how some baby animals develop from a larval stage into a completely different creature.
My Health explains the science behind common illnesses and injuries and also emphasizes the importance of maintaining personal health. The colorful, inviting series design features photos, medical illustrations, amusing cartoon art, tables, sidebars, and hands-on activities.
Grade-schoolers learn how ants, snails, slugs, beetles, earthworms, spiders, and other subterranean creatures live, breed, interact, move about, defend themselves, and more.
Fascinating introduction to the world of single-celled organisms recounts the feeding, reproductive, and defensive strategies employed by an array of curious creatures: amoeba, paramecium, suctorian, hydra, others. Easy-to-understand language, 37 illustrations.
My Health explains the science behind common illnesses and injuries and also emphasizes the importance of maintaining personal health. The colorful, inviting series design features photos, medical illustrations, amusing cartoon art, tables, sidebars, and hands-on activities.
