Mock Rocks Day 1 Animoto

Thursday, December 4, 2008

Great Job 4th Graders!

Today in Science, you learned how to do the scratch test to identify minerals.  The property that we are testing is hardness.  You learned that the hardest mineral in our set couldn't be scratched with a fingernail, penny, OR a paperclip.  We identified that mineral as quartz. 

The softest mineral in our set could be scratched by even your fingernail!  We identified that mineral as gypsum.
Great job.....You are truly little geologists!!

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