In this engaging title kids will discover how sound waves travel through different matter and learn about concepts such as echoes, volume, and pitch. Fun activities reinforce the reader's...
Autor: | Smith, Paula |
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ISBN: | 9780778705246 |
Sprache: | Englisch |
Produktart: | Kartoniert / Broschiert |
Verlag: | Crabtree Publishing Co,Canada |
Veröffentlicht: | 01.08.2014 |