"Stargazers have observed Mercury, Venus, and Mars--the other small, rocky planets in our solar system besides Earth--for thousands of years. More recently, we have begun to explore our neighbors in outer space via flyby spacecraft, probes, and rovers. Readers will learn how these expeditions have expanded our knowledge of these planets' atmosphere, surface, features, and even potential for life. A must read for anyone interested in discovering more...

In the search for oil and gas, we have drilled deep beneath the oceans surface and the ground, to tap into the energy wells trapped there. Today, we need more energy than ever before in our history, but the oil and gas fields may soon dry up. One option being considered is fracking. Rock is fractured underground in order to reach deposits. Discover how people use fracking to harness the before-unreachable supplies of gas and oil beneath Earths surface,...

"This book looks at causes, symptoms and treatments of head lice with real-life examples from kids who have experienced them"--