When you heat water up, you cause the _______ to move faster, spreading out and changing into a gas.

One important type of pressure is the pressure exerted on objects from the air or the _______ ______.

This is actually the ________ of the weight of the gas above an object on a given surface area. The higher the elevation, the lower the atmospheric pressure exerted because there is less air pressing down on the object.

It is also important to figure out the pressure under water or in a liquid. The ______ under water increases with how deep you are.

Pressure also has an impact on the ____ __ ____.

We often think of the states of matter changing from solid to liquid or liquid to gas based on the temperature, but the _______ also has an impact on the state. In most cases, the higher the pressure, the higher the ________ needed to change the state.

One example of this is the ________ _______ of water. At higher elevations where the air pressure is lower, water will boil at a lower temperature.