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1:49 play_arrow O moinho de vento origami Hellokids-pt visibility 159 schedule πριν 11 χρόνια favorite
0:50 play_arrow Expansão e contração do ar Hellokids-pt visibility 87 schedule πριν 11 χρόνια favorite
0:46 play_arrow El princípio de Arquimedes Hellokids-pt visibility 2 schedule πριν 11 χρόνια favorite