The document describes an experiment to test if eating chocolate ice cream increases heart rate compared to vanilla ice cream. The experiment involved subjects eating one scoop of either chocolate or vanilla ice cream, reading for 5 minutes, and recording their heart rate 10 times for each flavor with an hour break in between. The results showed the average heart rate increase was 3.8 bpm for chocolate ice cream and a decrease of 4.5 bpm for vanilla ice cream, supporting the hypothesis that chocolate ice cream increases heart rate.

1. Crazy About Caffeine

2. Science Problem
How does caffeine affect a person's
heart rate?

3. Hypothesis
Based on the research, chocolate ice cream
will make a person's heart rate go faster.

4. Materials
Chocolate ice cream
(Breyer's)
Vanilla ice cream (Breyer's)
Timer
Ice cream scooper
book
2 bowls
spoon

5. Procedure
1. Gather materials
2. Create data chart to record your results
3. Take initial heart rate reading
4. Put 1 scoop of chocolate ice cream into
bowl
5. Eat ice cream
6. Read book for 5 minutes
7. Check heart rate and record results
8. Repeat steps 3-6 9 more times (wait 1 hour
in between trials
9. Repeat steps 3-6 10 times with vanilla ice
cream (wait 1 hour in between).

6. Results
The average rise in heart rate for
chocolate was 3.8 bpm. the average
rise in heart rate was -4.5 bpm.

7. Conclusion
The hypothesis was proven to be correct.