How do we heat our homes, light our rooms, and power our cars? With energy In 2014, the United States relied on fossil fuels for about 67 percent of its power. But as the fossil fuel supply dwindles and climate change becomes an increasingly urgent issue, individuals, businesses, and governments are expanding their sources of renewable energy, including solar, wind, biofuel, hydro, and geothermal. In Renewable Energy: Discover the Fuel of the Future, readers ages 9 to 12 learn about these renewable energy sources and discover how sunshine can be used to power light bulbs and how...
How do we heat our homes, light our rooms, and power our cars? With energy In 2014, the United States relied on fossil fuels for about 67 percent of ...
The ground beneath your feet is solid, right? After all, how could we build houses and bridges if the land was moving all the time? Actually, the ground beneath us really is moving very slowly all the time In Fault Lines and Tectonic Plates: Discover What Happens When the Earth's Crust Moves, readers ages 9 through 12 learn what exactly is going on under the dirt. When slowly drifting continents bump up against each other along fault lines we experience earthquakes, volcanoes, and tidal waves Mountains and trenches are visible results of the slow movement of the earth's crust, as...
The ground beneath your feet is solid, right? After all, how could we build houses and bridges if the land was moving all the time? Actually, the grou...