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Observation

You should observe that the participants would become more alert after drinking the caffeinated coffee. They should therefore be able to burst more balloons after drinking the coffee as compared to before they have drunk the coffee.

Use this table below to help record your observations.

Participant Balloons Burst (Before coffee) Balloons Burst (After coffee) Participant Balloons Burst (Before coffee) Balloons Burst (After coffee)
Male 1 10 11 Female 1 8 10
Male 2 9 10 Female 2 7 9
Male 3 6 8 Female 3 7 8
Male 4 7 9 Female 4 5 6
Male 5 9 10 Female 5 8 9
Male 6 6 9 Female 6 9 11
Male 7 7 9 Female 7 6 8
Male 8 8 11 Female 8 7 8
Male 9 8 10 Female 9 8 9
Male 10 6 7 Female 10 7 9
Total 76 94 Total 72 87

The male participants had improved their results by 23.6% after drinking the caffeinated coffee. The female participants had also improved their results by 20.8% after drinking the same caffeinated coffee.

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Complexity level:
4
Project cost ($):
30
Time required:
1 hour to prepare, 3 hours for experiment
Material availability:
Easily found
Safety concerns:

NA