Wednesday, March 10, 2010
Erosion: Our Science Topic for Real
Keen science student Nicklas B. noticed a perfect example of erosion just a few feet from our classroom. Here he helps his classmates observe a real example of what we have been simulating in our current Science unit on Land & Water. We're learning that the speed of water run-off creates different patterns and deposits.
Erosion is a serious problem in many parts of the world, such as Haiti, where people cut down the trees for firewood. The best soil then washes away during rains. The result farmers can't grow as much food and people go hungry.
(By the way, the cause of our run-off may be a cracked irrigation head. We'll alert the gardeners.)
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