Books with author Leon Gray

We usually think of GPS (Global Positioning System) as a good thing, especially if we're using it to find our way from place to place. GPS satellites, radio signals, and receivers work together to pinpoint our location and get us to our destination. Hikers, bicyclists, and even golfers are finding ways to use GPS to improve their athletic experiences. The military installs GPS in many kinds of equipment, vehicles, and weaponry. GPS has surprising applications as well, such as tracking animals for conservation efforts. But many people are suspicious of this technology, especially when it's used to locate them without their consent. Many aspects of the GPS debate are explained, giving readers the ability decide for themselves where, when, and how satellite positioning should be used.

With science, the world around us, and STEM principles all informing the value of this series, it brightly describes biomes with detailed photography with a strong concentration on the features that make them unique.Wow sidebars center are compare and contrast driven and Bio-Facts describe the interactions between humankind and the biomes. Statistics are up-to-date and both fascinating and frighteningfrom the fact that 20 tracks of land the size of football fields are destroyed in the Brazilian rainforest every day; this contrasted with the fact that 50% of all known species are found in rainforests. Quizzes are part of the endmatter.

With science, the world around us, and STEM principles all informing the value of this series, it brightly describes biomes with detailed photography with a strong concentration on the features that make them unique.Wow sidebars center are compare and contrast driven and Bio-Facts describe the interactions between humankind and the biomes. Statistics are up-to-date and both fascinating and frighteningfrom the fact that 20 tracks of land the size of football fields are destroyed in the Brazilian rainforest every day; this contrasted with the fact that 50% of all known species are found in rainforests. Quizzes are part of the endmatter.

Motors, computers, and compasses all use magnetism to work properly. Its also an important force in electricity. Readers will be introduced to the basics of magnetism, including Earths magnetic field, attraction, and repulsion, as well as the pioneering scientists who discovered and worked with magnetism and their exciting experiments. Colorful photographs enhance each section, and fascinating fact boxes add even more detail to the curriculum-based science content. Thorough examples draw from readers experience and everyday situations to drive home important points. From electromagnetism to magnetometers, readers will definitely feel the pull of new knowledge!

Readers will discover how plants and animals survive living in places as extreme as the bottom of an ocean, the edge of a cliff, and the slopes of a mountain. Readers journey through some of Earths harshest environmentsincluding hot deserts and frozen polar landsto explore the life that can be found there. Fascinating facts about how plants and animals have adapted to life in the most incredible places on Earth are presented through accessible text. Bright photographs accompany these facts, showcasing the exotic places and amazing animals that are highlighted throughout. Essential science concepts, such as biomes and adaptations, are detailed for readers on each page.

Over the past few hundred years, the introduction of electricity has changed how people live all over the worldso much so that many cant imagine life without it! The earliest experiments with electricity, like those done by Ben Franklin and William Gilbert, will fascinate readers as they learn the basics of electricity, from atoms to circuits. Exemplified by familiar situations and items, the main science content supplements what readers will encounter in the classroom, including history as well as future energy sources such as wind and solar power. Vivid photographs and additional fact boxes make learning about science simply electrifying!

The widespread use of blogging today has made understanding how to read and write these online journals an essential skill for digital literacy at any age. In these pages, the ins and outs of several kinds of blogs—including political, news, and personal ones—are explained in clear terms. Content management, HyperText Markup Language (HTML) text editing, and web hosting are just a few of the topics that are simplified to guide users towards getting the most out of this cyber technology.