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Pulls Can we stop things with a pull? Read this book to find out about how pullingmakes things move. Books in this series introduce children to simple forces.Each ... »
Empujar = Pushes Why are some things hard to push? Read this book to find out about how pushingmakes things move. Books in this series introduce children to simple forces.Eac... »
Trekken Kunnen wij dingen tegenhouden door eraan te trekken?Lees dit boek en leer alles over hoe je dingen in beweging brengt door eraan te trekken.Boeken in deze se... »