schmied/reid©2003

Yogurt Experimental Design Lab

Name_____________

Questions

Period _____

A Practical Bacteria Research Project

Student #______

 Answer these questions on a separate sheet of paper. Use complete, quality, and correct sentences and paragraphs (110 pts / 10 pts each)

Answer each question on a separate sheet of paper. Use complete, quality, and correct sentences and paragraphs (110 pts / 10 pts each unless otherwise marked)

 

1. What question did you develop for this experiment?

2. What was your prediction (If - Then)?

3. State the hypothesis you developed in If, Then, Because Format.

4. List all the materials you used in this experiment. (Check the list or website)

5. Describe the procedure you used to test the hypothesis, step by step.

(How did you do the five yogurt tests?)

6. What was the Manipulated (experimental) variable in this experiment?

7 What is the Control condition for the entire lab's experiment?

8. What did you do to show that the yogurt starter actually worked?

9 a. Name 2 uncontrolled variables in this experiment. (5 pt)

b. Name 2 controlled variables in this experiment (5 pt).

10. Conclusion: (20 pts) Recheck the data on your data table. What is your conclusion? (Tell if your hypothesis was strengthened, weakened, or disproved, and tell why you think this is so!)

11. Best Yogurt Determination - Analyze, using the test code tables to help you, the data your class gathered about the different types of yogurt we made, then answer this question

* * * Which was the best and the worst kind of yogurt we made?? * * *

Bonus question (10 pts) You are walking down the road when suddenly there is a tremendous bang! Dazed over the noise you look up and see that a bomb has exploded! To your horror, you see a scene of dreadful carnage with mangled bodies lying all over the road. Miraculously, even though you are only a few feet away, you are completely unscathed. How could this possibly be?

Yogurt Index
Project Page
Home
John Schmied & Mike Reid © 2009 all rights reserved