Introduces younger readers to biofuels--corn ethanol, sugarcane ethanol, and others--as a possible energy source, and discusses the differences between renewable and nonrenewable energy, fossil fuels, photosynthesis, and more.
An exploration of solar energy that discusses the properties of the sun, how it is used by plants, global energy sources, solar thermal collectors, its advantages and disadvantages, and other related topics.
Introduces younger readers to biofuels--corn ethanol, sugarcane ethanol, and others--as a possible energy source, and discusses the differences between renewable and nonrenewable energy, fossil fuels, photosynthesis, and more.
Introduces young readers to environmentally friendly power sources, which includes solar, wind, hydrogen, and geothermal powers; and also discusses fossil fuels, pollution, greenhouse gases, and the importance of conservation.
