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Plant Cells & Animal Cells!(:

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.
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by taylorc

teacher: Alfonso Gonzalez

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My Yeast Experiment!!!:) Me and my partner hadlei asked the question "How does the liquid affect the yeast?" and our answer is the the sugar water is the only one that affected the yeast by making the balloon blow up and it measured 6 inches around and then on the least day it shrunk a little from deflation and it shrunk down to 4.75 inches and the all started at 4.5 inches. Our evidence is we checked everyday for change and vial e is the only one that blew up a little it started at 4.5 inches then blew up to 6 inches then shrank to 4.75 inches. Inaccuracies or sources of error are the balloons were not sealed so it let gasses out. Observations are there was no change for vial a,b,c and d but vial e grew on the second day and shrunk on the last day. I understood that out of all our liquids vial e only made the balloon blow up. A pertinent question would be why did only sugar water make the balloon blow up?

Article posted November 4, 2011 at 12:18 PM • comment (2) • Reads 4962 • Return to Blog List

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Posted Comments

Did the temperature of the water make a difference?
Thanks for sharing.
Comment Posted on November 10, 2011 at 11:07 AM by Penny

we did yeast too, but we made a mistake because we forgot to get balloons :( so we just determined how how the smells changed overtime.
Comment Posted on November 8, 2011 at 02:08 PM by hannahc

About the Blogger
Plant cells and animal cells have a lot of things in common like: Cytoplasm, Cytoskeleton, Endoplasmic Reticulum, Golgi Apparatus, Mitochondria, Nucleus, Peroxisomes, Plasma Membranes, Ribosomes. But they also have differences like: plant cells have Cell Walls, Chloroplasts and Vacuole and animals cells don't. Also, animal cells have Centrioles, Flagellum and Lysosomes and plant cells don't.

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