SmithLifeScience                 Name _________________ Period ____

Scientific Method

Multiple Choice

1. What did Homer use to try to clean the green slime from his shower?
    a. orange juice                             c. coconut juice
    b. apple juice                              d. Windex

2. If you think your feet hurt because your shoes are to tight.   You are making:
    a. prediction                               c. hypothesis
    b. observation                              d. a complaint
   
3. Tyler doesn't think the bears will lose another game this year. This is a:
    a.     prediction                            c.inference
    b.     hypothesis                           d. a dream

4. When an experiment is finished you should look over experiment to see if there are any:
    a.     predictions                           c. ways to improve the experiment
    b.     hypothesis                           d. controls

5. In the experiment Slimitosis, what was slimitosis? ________________________

6. A scientific experiment begins with a:
    a. prediction                                b. conclusion
    c. hypothesis                                 d.   problem or question

7. List one physical characteristic of a mealworm. ___________________________

8. Facts, figures, and other evidence you collect during an experiment is called:
    a. chart                                       c. graph
    b. hypothesis                               d. data

9. A Hypothesis is a ________________.
    a. possible explanation                  c. fact
    b. design                                      d. wrong answer

10. How many variables should you change in an experiment?
    a. one                                           c. two
    b. three                                        d. four

11. In Squidward Symphony  what instrument did Squidward think would attract more
     jellyfish? _____________

12. The ending of an experiment is called the:
    a. problem                                   c. hypothesis
    b. data                                        d. conclusion

13. After you have collected and recorded data in a chart or graph you should:
    a. relax                                     c. compare the results
    b. make a hypothesis                  d. repeat the experiment

14. Name any mistake  I made in the Tootsie Pop Experiment?__________________
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15. Garett wants to see if a longer baseball bat can hit the ball farther.  He gathers 5 bats of different lengths: 28", 30", 31", 32", 34".  Three of the bats are made of wood and two are made of aluminum. Garrett has his father pitch to him.  His friend, Damien, batted one time using the 32" bat.
Is anything  wrong in this experiment?_____________________________________
_________________________________________________________________

16. Jackie and Ivy each use a different pen in school.   Jackie says her Bic pen will last longer than Ivy's Felt Tip pen.  They decide to use their pens for all of their school work and see whose pen lasts the longest.   Is anything wrong with this experiment?
___________________________________________________________________
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17. Mr Smith said, "Girls get better grades than boys do."  He added up 43 girls' grades on a test, and added up 62 boys grades on the same test.  He then found the average.  The girls scored 78%, the boys scored 73%.  Girls are smarter than boys!  Is this a fair test? Is anything wrong with this experiment?
_________________________________________________________________
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18. After being exposed to radio waves, how was the mice's strength tested?
___________________________________________________________________

Did each of these products live up to their advertising

19. Experimental Itching Powder   Ad: Itches will last 50% longer 

                Yes they did      No they didn't

20. Muscle Cream      Ad: Doubles a person's muscle power   

                Yes it Did        No it didn't

21. Super Bubble Soap    Ad: Produce bubbles twice as big   

                Yes it Did        No it didn't

22. List one quanitative observation of a mea;worm. __________________________

23. You have been given a bouquet of cut flowers.  You remember once seeing a gardner put some sugar into the water in a vase before putting the flowers in.  You wonder if the gardner did that so the flowers would stay fresh longer. Write a hypothesis for an experiment you  could perform to answer your question.

Hypothesis:


Design an experiment to test your hypothesis. 
Remember to control all the other variables except sugar.
What data will you collect? Hint: You could count the numbers of petals that fall.