The 8th graders had a great lab on Thursday dealing with the mining of minerals vs. cost of waste. The 8th graders were given 5 minutes to pick out the "minerals" (colored beads, sunflowers) from a birdseed mixture. Here's the catch - along with the "minerals" came "waste" in the form of millet seed. At the end of 5 minutes the "minerals" were added up and represented a profit. The millet seeds were also added up and was their cost. Plus, any millet seed dropped on the floor, on the desk, etc. represented environmental clean-up. They didn't do too well as business owners ~ they lost about $1,000. They learned that a few gold nuggets = a lot of waste & it is more profitable to go after minerals abundant in the Earth's crust.
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