Grotonsciencegeek is evolving! For the new year comes a new look. I had to update the template of the blog due to some changes that Blogger made about a year ago. Stay tuned for a new look and new features. Please be sure to let me know if you're having trouble locating something.
Have a great Holiday season with family and friends!
Welcome to the classroom blog of Mr. DeVoe - Here you will find photos, videos, class downloads, and other means to celebrate the community of Groton, biology, and environmental science.
19 December 2008
18 December 2008
Wake Up, Freak Out - then Get a Grip from Leo Murray on Vimeo. Here is a good video I found regarding the current climate crisis.
15 December 2008
14 December 2008
Sunday morning I spent birdwatching with local birders, Jim Barry and Ernie Spanhauer for the annual Christmas Bird Count. We saw 31 different species in 5 hours. Highlights included a Northern Shrike, a flock of Snow Buntings, several White-Winged Crossbills, and an American Kestrel.
11 December 2008
Today we saw firsthand how saltwater affects cells. After we added salt to our elodea leaf the high concentration of water within the cell membranes quickly rushed out of the cell, leaving a shrunken membrane within the cell wall skeleton. The technical word for this is osmosis. This also explains why you get thirsty after eating something salty and why Magellan's crew couldn't drink sea water during their voyage (right Mr. Filzen's students??)
10 December 2008
Here's a quick update on our trout. Here are 2 pictures at 6 weeks of development. All yolk sacs have pretty much been absorbed into the fish and most are now actively feeding on fish food from the top. The above picture is of our lone deformity. We had 5 fish die since the beginning but this one had a mutation where (from what we can decipher) the yolk sac was enclosed within the fishes belly. This skin did not recede as the yolk sac did, leaving this bubble. The bottom represents a typical healthy Brown Trout.
09 December 2008
Today, Cornell Junior, Inga Conti-Jerpe stopped by to share her expertise on turtles. She even brought in her pet Red-eared Slider. Thanks Inga for giving us your time.
08 December 2008
Today's bird watchers made an excellent observation. In addition to six different species of birds we witnessed a yellow-bellied sapsucker feasting on our suet block for nearly 10 minutes. According to the map, it is very rare to have them in this area at this time of year. This was also a first for Mr. DeVoe. He has never seen them at the school feeder nor his home feeder. All data from our feeder is submitted to Cornell at www.ebird.com.
03 December 2008
02 December 2008
Some really good 3D cell projects have been handed in this week and many high grades were earned. I hope this helped everyone realize that cells come in a variety of shapes depending on what the cell is specialized to do. My favorite cell was probably ERIN I.'s. Her design was truly original and she did a nice job on the organelle sheet as well. My sub-par photography skills fail to capture it in it's true elegance. Good luck everyone on tomorrow's test.
Please study for tomorrow's cell test. Here is the micrograph we took yesterday of the elodea plant cell. I labeled the major visible parts. Here are the important concepts to study:
1. The organelles and functions
2. The 3 parts of the cell theory
3. The organelles found only in plant cells
4. Be able to label a plant cell
Also, cell projects were due today and they lose 5 points every day they are late. Please get yours in ASAP!
1. The organelles and functions
2. The 3 parts of the cell theory
3. The organelles found only in plant cells
4. Be able to label a plant cell
Also, cell projects were due today and they lose 5 points every day they are late. Please get yours in ASAP!
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