Water Pressure


While watering the grass with a water hose, I tried to use my finger to stop the water a few times, but it didn't work. The water rushing out of the hose had too much pressure. My friend told me that they don't have this much pressure at their house. They live up the hill, just a few blocks away. I tried their water hose and could stop it by my hand. That showed me that water pressure is not the same everywhere. I was thinking about this for a while. First, I thought the diameter of the pipe may be a factor, but that wasn't the case. I checked them out and they both looked the same size. Thinking about this experience raised many questions in my mind.

Now my questions are why does water have pressure? Do all liquids have pressure?

 How does the water pressure change at different depths? How can we reduce or increase water pressure? Can we use water pressure to do something, such as lifting a car, breaking a tree, or digging into the ground? Any of these questions can be the subject of a science project.

 Project description:
In this project you will perform experiments to find out how the water pressure changes at different depths. You are offered a total of 5 questions and 5 experiments in order to investigate different aspects of water pressure. You will be able to construct your own pressure gauge using the material that may be found at home or obtained locally.
 Details of this project:
More details or support on this project is available for the members of ScienceProject.com. As a part of this project you may construct a model to show how water pressure can be used to do works and how a Hydraulic Jack can lift heavy objects.