Students use a globe and cups of water to illustrated the amount of water versus land on earth and the amount of fresh versus salt water available to plants and animals.
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Scholars build a simple filtration system to remove impurities from muddy water and rate the filtered water to a grade of clarity scale. The focus is on teamwork and problem solving. This lesson would be effective in your STEM curriculum...
3rd - 12th Technology & Engineering CCSS: Adaptable