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| Omfang
| 48 sider : : illustrasjoner ;
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| Opplysninger
| A need for alternative energy -- Water in motion -- What is water power? -- A powerful history -- When did people start using water power? -- From water current to electrical current -- How can water power be used to create electricity? -- The big truth! -- Affecting the environment -- What are the downsides of using water power? -- Tides and waves -- How can people capture the energy of ocean waves? -- A bright future -- Will more people use electricity generated from water power in the future?
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| Emner
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| Dewey
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| ISBN
| 9780531236871 (library binding). - 9780531239445 (pbk.)
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