Smithers’ thinks that a special juice will increase the productivity
of workers. He creates two groups of 50 workers each and assigns
His friend Barney tells him that coconut juice will get rid of the
Bart believes that mice exposed to microwaves will become extra
thing on the market, it even claims to cause 50% longer lasting
of workers. He creates two groups of 50 workers each and assigns
each group the same task (in this case, they're supposed to staple
a set of papers). Group A is given the special juice to drink while
they work. Group B is not given the special juice. After an hour,
Smithers counts how many stacks of papers each group has made.
Group A made 1,587 stacks, Group B made 2,113 stacks.
Identify the:
1. Control Group
Group B
2. Independent Variable
Special Juice
3. Dependent Variable
Productivity of Workers
4. What should Smithers' conclusion
be?
The special juice doesn't increase the productivity of workers
5. How could this experiment be
improved?
Make sure they have the same amount of time; fatigue levels are similar; give before.
Homer notices that his shower is covered in a strange green slime.
His friend Barney tells him that coconut juice will get rid of the
green slime. Homer decides to check this out by spraying half
of the shower with coconut juice. He sprays the other half of the
shower with water. After 3 days of "treatment" there is no change
in the appearance of the green slime on either side of the shower.
Identify the:
6. What was the initial observation?
There is green slime covering Homer's shower
7. Control Group
The half sprayed with water
8. Independent Variable
Coconut Juice
9. Dependent Variable
Appearance of the green slime
10. What should Homer's conclusion be?
Coconut juice cannot get ride of green slime
Bart believes that mice exposed to microwaves will become extra
strong (maybe he's been reading too much Radioactive Man).
He decides to perform this experiment by placing 10 mice in a
microwave for 10 seconds. He compared these 10 mice to another
10 mice that had not been exposed. His test consisted of a heavy
block of wood that blocked the mouse food. He found that 8 out
of 10 of the microwaved mice were able to push the block away.
7 out of 10 of the non-microwaved mice were able to do the same.
Identify the:
11. Control Group
10 mice that haven't been exposed
12. Independent Variable
Microphone
13. Dependent Variable
Strength of Mice
14. What should Bart's conclusion be?
Radio waved had little of no affect
15. How could Bart's experiment be
improved?
Repetition
Krusty was told that a certain itching powder was the newest best
thing on the market, it even claims to cause 50% longer lasting
itches. Interested in this product, he buys the itching powder and
compares it to his usual product. One test subject (A) is sprinkled
with the original itching powder, and another test subject (B)
was sprinkled with the Experimental itching powder. Subject A
reported having itches for 30 minutes. Subject B reported to have
itches for 45 minutes.
Identify the:
16. Control Group
Original itching powder (Group A)
17. Independent Variable
Experimental itching power
18. Dependent Variable
Amount of itching
19. Explain whether the data supports
The advertisements is incorrect. If it was 50% more than other products than the 30 minutes should changed to a hour NOT 45 minutes
Lisa is working on a science project. Her task is to answer the
question: "Does Rogooti (which is a commercial hair product)
affect the speed of hair growth?" Her family is willing to
volunteer for the experiment.
Lisa should put Rogooti on for 1 month vs fake hair products to, maybe Bart. After 1 month she should see if anything happened.
Control Group: Bart's hair
Independent Variable: Applying Rogooti
Dependent Variable: Lisa's hair
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