Ottawa Catholic High Schools – Final Day

This morning the students arrived at the lab bright and early to start their invertebrate behaviour labs.  The three labs that were being conducted by different groups were: 1) the effect of temperature on the feeding rate of barnacles, 2) osmoregulation in marine organisms, and 3) the flipping rate of different sizes of sea stars.  The students learned that working with live animals can be interesting and challenging! 
 
Then the students did a bell ringer quiz to test just how much knowledge they had retained from their week of immersion into marine biology.  Can you name any two structures of the sea star and explain their function?  Hopefully the students can because that is one of the questions on the quiz. 
 
The students then headed into St. Andrews to go to church, have a picnic lunch, and visit town while all the shops are open for some last minute souvenir shopping.
 
After supper the students will board the bus for the long trip back to Ottawa.  Thank you all for a wonderful week.  We hope you have a safe trip home.  Come visit us again!  

Sea star acrobatics!

Green crab in different salinities.

Counting the cirri extensions of barnacles.