Today, it's possible to see deep into the universe. In order to achieve this, scientists had to work hard understanding complicated ideas about how things work in space. Readers of this book get to practice being scientists while taking part in 12 investigations that will not only teach then why a planet's spin and orbit matter but also how scientists think about questions they want to answer. Step-by-step instructions guide readers through each investigation, engaging them with science concepts sure to be encountered in class

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