The Cheetahs, Great White Sharks and Tigers built self-contained terrarium projects using recycled plastic bottles and old bird seed. A layer of sand below the soil in the bottles acts as a water table, keeping the water cycling through the soil and preventing root rot. An earthworm consumes organic material in the soil, and when the bottle is in the sun, it heats up and exhibits evaporation and precipitation. Thus, this unit was a very concrete way to explore ecological concepts such as the water cycle and food chains. Although the unit is coming to a close at school, parents of interested students (as well as those from other classes) can find lots of ideas online for building their own versions of this project! Check out http://makezine.com/projects/tabletop-biosphere/ for some more information. For a more arid take on this project, consider using succulents:
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ProjectsBraque posts photos and resources here to accompany many science units and explorations. Archives
November 2017
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