We have three 6th grade Science classes and two 8th grade Science classes blogging here from the Pacific Northwest in Chimacum, WA! Sixth graders are learning a bit about Mt Saint Helens, environmental science through fresh water ecology, and physical science this year. Eighth graders are learning about life science this year. Please join us as we learn Science by exploring our world.
Mr. G's Blog Mr. G's Class Facebook Page
Article posted June 7, 2013 at 05:31 PM GMT0 •
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We experimented on the land snail. We wanted to see what color the snail would choose. We put a green paper amd a blue paper on opposite sides of the snail, and we let the snail choose. Here are out results:
Green: 3 times
Blue: 1 time
Article posted June 7, 2013 at 05:31 PM GMT0 •
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Article posted March 4, 2013 at 04:58 PM GMT0 •
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Interphase is the longest point of cell reproduction. It happens before mitosis. During this phase, the DNA replicates and the cell grows larger.
The next phase is prophase. During prophase, the chromatin coils and becomes smaller, forming chromosomes. The nuclear envelope of the cell disintegrates.
Metaphase comes after prophase, and the spindle fibers of the cell extend to reach the chromosomes and aline in the center of the cell.
In anaphase, the spindle fibers shorten and the sister chromatids are pulled apart to opposite poles. Each chromatid becomes a chromosomes. The cell then elongates.
In telophase, the chromosomes slowly become less dense and form chromatid fibers. The spindle fibers disappear and the nuclear envelope forms.
Division of the cytoplasm begins when the telophase is over. A cleavage furrow containing a contractile ring develops and separates the two newly form nuclei. The furrow deepens a creates two identical cells.
Article posted March 4, 2013 at 04:58 PM GMT0 •
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Article posted February 11, 2013 at 05:12 PM GMT0 •
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In science, we swabed different parts of the school and ledt them in a covered petri dish over night. When we came to second period the next day, we had grown bacteria!
A: our bacteria has not died after one night.
E:the bacteria has grown a lot over night. Was barely visible first day but on the second day it is.
I : One problem was we didnt get all four swabs. We only got one.
O: both bacteria is yellowish. The shelf bacteria is larger than the lunchroom floor. The bacteris spread around the petri dish.
U: there was different bacteria in the two separate places so they grew differently.
Observations:
On top of shelf:
On day one, when we swabed, there was a small smudge in the petri dish where we put what we collected. The second day, there was a yellowish colored spot. It was shaped as a paint splat.
Article posted February 11, 2013 at 05:12 PM GMT0 •
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Article posted January 31, 2013 at 05:26 PM GMT0 •
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Root hair cell from a plant. Function: to help absorb water.
What helps it carry out this funtion: the root hairs are in the ground where the water is absorbed.
Muscle cell. Function: to help you move. What helps it carry out this function: the cells build up the muscle, and the muscle moves with your body, helping you move.
Nerve cell: Helps you feel. What helps it carry out this function? The feeling goes through your nerves, then to your spinal cord. Then to your brain and tells your brain what you feel.
Article posted January 31, 2013 at 05:26 PM GMT0 •
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Article posted January 10, 2013 at 05:14 PM GMT0 •
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Well, all the items i drew where things already invented. But, in the paragraph i wrote, i stated that if you have a bouncy ball or basketball, they bounce because of their shape. The balls are round, so they bounce, but if they are square, then they just fall and their form doesn't let them bounce.
So, I have learned that the shape of an object has a large impact on what it can do. :)
Article posted January 10, 2013 at 05:14 PM GMT0 •
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Article posted December 21, 2012 at 05:16 PM GMT0 •
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•What we think will happen:
Chocolate milk will make it shrink and the Capri sun will make it expand
The weight of eggs before we put them in:
egg a going in milk was 69.17
egg b going in caprisun was 80.35
•after our experiment:
Caprisun egg 86.34 milk egg 72.19
milk egg lost mass, so it was hypotonic.
Caprisun egg gained mass, so it was hypertosnic.
Article posted December 21, 2012 at 05:16 PM GMT0 •
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Article posted December 13, 2012 at 05:10 PM GMT0 •
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What do animal and plant cells have in common? Well, the both have the rough ER, and part of the ER with ribosomes, and smooth ER, the part without ribosomes. They both have a centrosome, nucleos, nucleolus, and nuclear membrane. Also, mitocondrion, ribosomes, cytoplasm, cell membrane, vacuole, and Golgi body.
So, what does an animal cell have that a plant cell doesn't? They have a lysosome. This is on of the things a plant cell doesn't have. they also form more round.
But, a plant cell also have something animal cells don't. These cells have a cell wall. Also, they have a chloroplast and an Amyloplast.
Article posted December 13, 2012 at 05:10 PM GMT0 •
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Article posted November 28, 2012 at 05:28 PM GMT0 •
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We found an odd looking microorganism in our mini pond. We don't have a name. It was large enough to see with no microscope. But to see the details, you need the microscope. It moved around the small amount of water we had in there. It would go in circles and turn around. Round and round and round... you get it. :)
Article posted November 28, 2012 at 05:28 PM GMT0 •
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Article posted November 19, 2012 at 05:08 PM GMT0 •
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I disagree with the first person saying that all cells in an Elodea plant are organisms.
I agree when The second person that Elodea cells cannot be called organisms because they cannot be on there own. I think that since cells are what are what make an organism alive, then they cannot be on there own. I think cellls have to be inside an organism.
Article posted November 19, 2012 at 05:08 PM GMT0 •
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