Today in our science class we did an experiment called Activity 39, "Cells Alive!'. This experiment used yeast to show us how respiration occurs.
Yeast is a single celled fungus that will make energy using sugar, which we added in the lab.
We started off with reviewing our homework and checking the homework for the night before. Then we jumped straight into the lab and we did preparations. (Procedures are all posted on Mrs.McCabes website and in the SALLY book on page c-43.)
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The experiment was testing whether yeast is a cellular organism that has the ability to respire. We were using BTB to test for the presence of CO2 gas, which turns from blue to yellow when it's present.
While we waited for our results, we took notes on cellular respiration watching this video, then we observed the final outcome of our experiment. We filled out the chart on page 20 in our science notebook. We did the analysis questions and did the activity 39 vocabulary which is also on Mrs. McCabes website. That is all we did today in science.
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