Crazy About Caffeine

Science Problem

How does caffeine affect a person's heart rate?

Hypothesis

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

Materials

Chocolate ice cream (Breyer's)

Vanilla ice cream (Breyer's)

Timer

Ice cream scooper

book

2 bowls

spoon

Procedure1. 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).

Results

The average rise in heart rate for chocolate was 3.8 bpm. the average

rise in heart rate was -4.5 bpm.

Conclusion

The hypothesis was proven to be correct.