All fluids exert pressure like the air inside a tire. The particles of fluids are constantly moving in all directions at random. As the particles move, they keep bumping into each other and into anything else in their path. These collisions cause pressure, and the pressure is exerted equally in all directions. When particles are crowded together in one part of an enclosed space, such as the air particles first entering a tire, they quickly spread out to fill all the available space. That’s because particles of fluids always move from an area of higher pressure to an area of lower pressure. This explains why air entering a tire through a tiny opening quickly fills the entire tire.
During a particularly dry year the far At first he was carrying water from the near by creek but decided he needed to find an easier way to get water to his crops. The farmer decided to dig an irrigation ditch from the creek to his fields. He used rocks to block off the creek while he dug. when he was done digging the ditch he removed the rocks and watched as the water flowed down the irrigation ditch to his fields.
Was the water pressure lower in the creek or the canal.