Why Do Swings Swing? Level 4 Factbook

Why Do Swings Swing? Level 4 Factbook

Autor
Editura
An publicare
2010
Nr. Pagini
16
ISBN
9780521137201

Descriere

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 fin...

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Peter Rees