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 |
|---|---|
| ISBN: | 9780778705246 |
| Sprache: | Englisch |
| Produktart: | Kartoniert / Broschiert |
| Verlag: | Crabtree Publishing Co,Canada |
| Veröffentlicht: | 01.08.2014 |