"Questions Kids Ask About Space & Stars (Questions Kids Ask, 23)"
Why do some plants have rings? Where does space end? Are there any Martians on Mars? How fast do rockets fly? How big is the moon? How hot is the sun? Why do stars twinkle? What do astronauts wear in space? What causes the Northern Lights?
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| 格式: | 图书 |
| 语言: | Undetermined |
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Grolier Limited
1990
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