Thursday, November 21, 2013


The Ravens enjoyed a practical science activity with local veterinarian and Chickadee & Robin dad, Chris Tomalty.

The students used a centrifuge to conduct an investigation using density to determine what parasite eggs were present in fecal samples of 3 cows, 1 horse, 1 goat, and their resident rabbit Fuzzles von Skittles.   They observed whip worm and stomach worm eggs as well as pollen of digested hay under the microscope.  They also viewed preserved parasites and calculated the number of worm eggs a cow puts out daily.
Thank you Chris Tomalty for spending time in the classroom.

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