Title: Comparing heart rate and blood pressure in different water temperatures.
How does temperature have an effect blood pressure?
How does temperature an effect on heart rate?
Hypothesis: If we put a human's face in the 65 degree water, then the heart rate will decrease and blood pressure will increase. If we put one's face in the 80 degree water then, the reaction will occur but with a less extreme result then the 65 degree water experiment.
Make sure you have all the materials listed below.
Fill one bowl with 4 liters of water and put ice in it until 65 degrees.
Fill the other bowl with warmer water and heat up until 80 degrees.
Check the temperature to make sure it haven't gone up or down before doing your experiment.
Put on the blood pressure cuff.
First measure the normal heart rate and blood pressure.
Once you have the normal heart rate and blood pressure, stick your face in the 65 degree water for as long as you can.
Right as you need to come up measure the heart rate and blood pressure.
Repeat the steps above in the 80 degree water.
Record all your data.
-2 metal bowls -4 Liters of water -blood pressure cuff (measures both blood pressure end heart rate) -Thermometer -Ice
Conclusion: To conclude our experiment we have discovered that our hypothesis is not supported by the data we collected for cold water, on average we found that the heart rate raised and blood stayed relatively the same. In our research we found that after experiencing diving reflex one's heart rate is meant to decrease while the blood pressure increases. Our hypothesis for hot water was correct when comparing our data to our research, the heart rate stayed relatively the same and the blood pressure increased. When learning of diving reflex we discovered that there is less of an effect on the body in hot water and there was in fact less of an effect on our test subjects blood pressure and heart rate in the 80 degree water.