Have you ever asked yourself, "What are living things made from and how are the parts put together?" Visit the page Building Blocks of Life to learn more about this complex question.

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Visit Chernobyl's effects linger on. Read the article and answer these questions either online or using the Chernobyl's Effects student sheet.

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Now read Chernobyl Children Show DNA Changes and answer these questions either online or using the student sheet.

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Read Nuclear Energy Agency: Health Impact and answer these questions either online or using the student sheet.