Semester II

First Day of Classes for Semester II will being on Tuesday January 28th and NOT Wednesday January 29th as previously stated.

Final Exams

Tuesday January 21st: Biology 20 Final

Wednesday January 22nd: Science 10 Period 1 Final

Thursday January 23rd: Biology 30 Final

Friday January 24th: Science 10 Final

* All exams will be written in Rm 175 *

* All exams will begin at 9:00 am *

* Students are required to stay in the examination room for a minimum of 90 minutes! *

GOOD LUCK!

Do you waste water?

Just a reminder Grade 10's that you need to collect data on your family's water usage any two days over the Christmas holidays. We will use this data to complete the "Do you waste water?" LAB when we return to school in the new year. Enjoy this next week of holidays. See you back on Monday January 6th,2014!

A Perfect Flower

Today in Biology 20 we dissected a perfect flower....not perfect in that it looked beautiful and smelled delicious, but perfect in that it was a flower that contained both male and female reproductive organs. We spent time identifying, drawing and labeling all four whorls of flower parts and tomorrow will look at the pollen grains using a light compound microscope. You can see our work below.

Deadly Links!

Today in Science 10 we began investigating how other "things" besides energy flow through an ecosystem. To learn about biomagnification, we became a new organism---a grasshopper, a shrew, or a hawk, and simulated a food chain. The grasshoppers fed on the corn fields (pipe cleaner pieces), the shrews fed on the grasshoppers, and the hawks fed on the shrews. Unknowingly the white pipe cleaner pieces were sprayed with a pesticide. The pesticide moved through the food chain becoming concentrated in the top consumer. Here are some pictures of our Deadly Links Game.

Another Dissection

Today in Biology 20 we dissected the sea star. Check out our pictures below.

Bio 20 dissects the Crayfish

Today in Biology 20, we dissected the crayfish. The crayfish was our representative member of Phylum Arthropoda. Characterized by its hard exoskeleton, jointed appendages, and segmented abdomen, we got to examine both internal and external anatomy for this amazing animal which so many of us (well, not Ms Roach) enjoy eating.