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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 teacher: Alfonso Gonzalez
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My team and I did an experiment with different liquids and yeast.
Our question to our lab was How does different liquids affect the gasses yeast makes. I thought carbonated liquids would make more gasses but I learned just plain water and yeast made the most gas.
For our evidence we used balloons to catch the gas.
Our inaccuracies were not having enough balloons for each of our test tubes. We had three balloons and 6 test tubes. And on top of that one balloon got a hole. I observed the water and the yeast made the biggest balloon. I understand that my prediction was incorrect. I thought carbonated liquids mixed with yeast would blow up the biggest balloon but it was just water and yeast.
Article posted November 8, 2011 at 02:15 PM • comment • Reads 47 • Return to Blog List
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