Explains what is meant by renewable and sustainable energy, and features a discussion of nuclear energy, looking at how it occurs in nature, how it is harnessed and used, and its role in the future.
Explains what is meant by renewable and sustainable energy, and features a discussion of wind energy, looking at how it occurs in nature, how it is harnessed and used, and its role in the future.
Presents information about dam structures, discussing their shapes, different parts, design, construction, and building materials, and looking at how dams work.
Contains information about volcanoes, explaining what they are, how they happen, where they occur, and other topics; features discussion of prediction and protection; and includes a look at record-breaking volcanoes.