Lab Discussion Day

The Daily Questions for today dealt with making a proper experiment and following the steps of the scientific method.  You have learned about the scientific method and proper experimentation by Mr.McConahy and/or Mr.Timmerman.  Because of this, I am not going to spend a ton of time teaching you this on its own, but during labs throughout the year we will revisit the importance of both of these.

Thursday August 30^th

Yesterday we performed a controlled experiment.  Why do you think it was important that the ONLY thing we changed was the amount of sugar we fed the organism? (Each test tube had the same amount of yeast, same amount of water, the same color balloon, the same size test tube, etc.)

By only changing ONE variable, we can draw accurate conclusions.  If we changed both the amount of sugar AND the amount of yeast for instance, we would not be able to tell if the results we got were because of the sugar, or because there was more yeast.

“If we feed the yeast more sugar, then it will produce more waste”

This statement is an example of a:

A.  Theory  B.Experiment  C.Conclusion D.Hypothesis

This is a hypothesis because it can be tested.  A THEORY is something that has already been tested and proven true over and over.

The rest of the period I gave you guys time to answer the Lab questions and finish your note cards from yesterday.  

REMEMBER OUR FIRST DAILY QUESTION QUIZ IS TOMORROW!!!!