Why has coal been such a prominent energy source? How can renewable energies be stored most effectively? Linking science to practical applications and social issues to realistic goals, this new series orients ecologically conscious readers toward the future of Harnessing Energy. With a special section on historical moments involving the energy source, details on key inventors and notable discoveries, and statistics to back up objective reports, each title seeks to present a fully contextualized history of the featured energy form. A must-have for any STEM unit dealing with energy studies. In this title examine the ways in which the sun has historically been used as an energy source and how current and future energy demands are changing its technical applications and efficiency levels.
While it may not be as simple as pouring water into a gas tank, water, or at least the hydrogen that makes up water, will one day become a significant source of energy. In this important new book, children will discover not only what hydrogen is, but also how this simple element can create clean energy. Hydrogens past deals with hot air balloons and airships, its present, space shuttles and fuel cells. What fascinating technologies await its future? Other topics include What is energy? the reasons why clean energy is so important the technologies that convert hydrogen to useable energy the obstacles that must be overcome before hydrogen can be a reliable energy source a case study highlighting Icelands plan to switch to a society run on hydrogen What is a hydrogen economy? a timeline that provides dates for historical breakthroughs in energy production
Did you know that some cars are run on fuel made from the oils from sunflowers and soybeans? Biomass: Fueling Change is an exciting new book that explores bioenergy, energy derived from organic matter, to produce heat, run cars, and generate electricity. Worldwide case studies and colorful photographs and illustrations will help children learn about the history of bioenergy and how the world is using this energy today. Topics include the history of bioenergy various types of biomass available for energy use the benefits of biofuels burning biomass the processes used to convert biomass to gas using bioenergy today, and its limitations
Emission of harmful greenhouse gases such as carbon dioxide is posing a grave challenge to nature. The problem of global warming needs to be addressed as soon as possible. How to Reduce your Carbon Footprint clearly explains what an individuals carbon footprint is and what we all can do to make a difference. Special case studies show how these ideas are currently being put into practice around the world.
Why did the astronaut take a mop into space? To clean up the stardust! How is a telephone like the planet Saturn? They both have rings! Kids are sure to enjoy reading and telling these out-of this-world jokes.
A city is not a habitat just for peopleit's a home for animals, too! Children will recognize a lot of animals they see living in their own cities, such as all kinds of pets, raccoons, squirrels, and birds. They may be surprised to see other city residents such as opossums, foxes, coyotes, and skunks. Wonderful images of baby animals help show where animals make their homes within a city, how they find their food, and why they have moved from natural to human habitats.
Not all forests are the same. Children will learn about northern, or boreal, forest habitats and the animals that live in them. Cute baby wolves, cougars, bears, lynx, porcupines, and moose are some of the animals featured. Young readers will learn about food chains, how mothers raise their babies, what kinds of foods different animals eat, and how forest animals survive in cold winters.