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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