Thursday, February 3, 2011

Maddie Bedder blog#4 Period 8 2/3/11

Today we observed our test tubes and took notes preparing for the upcoming lab report. Mr.Finley wants us to be exact and just flat out tell what will happen with your results.

What you will expect when your are writing your prediction? You should base it off of your hypothesis. You can use these things for evidence of CO2 production would be the cork shooting out. You also have to have pressure for that evidence. Some more evidence of CO2 production would be yeast and water outside of the test tube. Having it push stuff to have it come out of the sides. It could also just rise a little bit, not having to pop off. If the seal was very good it could be that less CO2 was produced, but the rate could also be very slow, so it wouldn't shoot off immediatley. You also need to have tables for your qualitative data. You could also have two tables if you would like. Because of the snowday, this lab report is going to be due Monday. Try to get little bits of typing done each day. For the conclusion, you could say what you tried if you didn't get it right away like some of the other groups. You should say what you assumed about you experiment, or you could also say what you knew. you could also say what you would want to do next. The conclusion should sum up your whole lab report. Try to say EXACTLY what you did, saw, and said. You should put the independent and dependent varibles should be mentioned in the prediction. The dependent varible was CO2 production. The yeast rises because the CO2 cant get out.

Maddie Bedder blog#4

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