Is there any relation between blood pressure and the rate of heartbeat?
Introduction: 

The heart pumps and circulates blood in different parts of our body. The pumping action of the heart has two properties that can be measured externally. These two factors are the heart rate and blood pressure. Both blood pressure and the heart rate are affected by different factors. Doctors use blood pressure and the heart rate to determine the status of our health. 

In a regular pump, higher speed of pumping results higher pressure of water. Is it the same about the heart? Does blood pressure increase by increasing the heart rate?
 
 Project description:
In this project you will investigate to determine if blood pressure is affected by the heart rate. Perform an experiment to test the relation between the heart rate and blood pressure. Record your observations in a data table and use it to draw a graph.
 Details of this project:
More details or support for this project are available at the members section of ScienceProject.com's web site. Material needed for experiment or a science kit about this title may be available at MiniScience.com.