All the Water in the World

Numbers and statistics don't mean nearly as much to middle schoolers as visuals. Create a model of earth's water supply with an aquarium, then follow the directions to remove small portions of the water to represent water in its various places on and around our planet. Learners then add up the percentages of locations of fresh water and discuss the importance of maintaining a clean and accessible supply of drinking water. 

55 Views 42 Downloads NGSS: Adaptable
Pros

  • Easy demonstration could also be done in groups with learners performing the measurements
  • Straightforward way to visually demonstrate earth's water supply
Cons

  • When performed as a demonstration, some kids may lose interest
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NGSS