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  Building Houses: Build a Cardboard Tube House
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  Build a house you can fit inside, using cardboard tubes.
  Build a Bridge
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  In this activity, learners use recycled materials to build a bridge that holds as many potatoes as possible. They investigate weight, height, strength, and measurement as they seek design solutions.
   
Comparing Sizes of Microorganisms
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  In this activity related to microbes, learners create scale models of microorganisms and compare relative sizes of common bacteria, viruses, fungi and protozoa using metric measures: meters, centimete
  