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Boeklezers.nl is a network for social reading. We help readers discover new books and authors, and bring readers in contact with each other and with writers. Read more ».
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Changing Materials
Children will be amazed to learn that a liquid can become a solid when itfreezes gases can turn into liquids when they cool down and a solid canchange into a... »
Children will be amazed to learn that a liquid can become a solid when itfreezes gases can turn into liquids when they cool down and a solid canchange into a... »
Fossil Fuels And Biofuels
What are fossil fuels? How does a biogas digester work? What are thedisadvantages of fossil fuels? Fueling the Future asks the questions thatyoung people wan... »
What are fossil fuels? How does a biogas digester work? What are thedisadvantages of fossil fuels? Fueling the Future asks the questions thatyoung people wan... »
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