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Earthlearningidea - http://www.earthlearningidea.com/ Xisclant a la muntanya russa A quina velocitat viatjo (a causa de la rotació i de l’òrbita de la Terra)? Demaneu als vostres alumnes que facin com si
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Document Date: 2014-11-17 06:22:14
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File Size: 166,70 KB
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