Why Do Swings Swing? Level 4 Factbook
ISBN: 9780521137201
Язык: English
Издательство: Cambridge UP
Год издания: 2010
Объём: 16 p.
Серия: Why Do
A series of twenty non-fiction science readers which engages children in the world around them. Why do swings swing? Why do swings stop swinging? What makes things change direction? You can find the answers to these and other questions about movement in Why Do Swings Swing?
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