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How long is a year?
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Claire Clark |
"Simple text and photos explain a year as a unit of time and Earth's orbit of the sun"-- |
OL16505930W |
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Yo-yo, billard, boomerang--
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Collectif |
Sans rotation, les objets s'éloigneraient très vite, poussés par l'inertie, et la vie en communauté serait impossible. Les jeux dépendent aussi des phénomènes de rotations : le yo-yo, ce petit objet … |
OL24862327W |
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Sun Up, Sun Down
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Jacqui Bailey,Matthew Lilly |
Science Works - Our everyday world is full of stories about science. From physics and fossils to the food chain, these bright, funny books show why things happen and how they work. Readers will enjoy… |
OL5740857W |