es and vice-versa.
The effects of temperature and pressure can be combined and be described by the following equation.
PV = nRT where:
P = Pressure
V = Volume
n = a given number of air molecules
R = Ideal gas constant 8.3145 J/ (K mol)
T = Temperature
P(M/D) = nRT where:
M/D is Mass/Density and is substituted mathematically for volume.
Ideally, you can work in partnership with their math teacher to have the students work on some sample calculations before they do this experiment. This will make the connection more salient
Given that the students now have a familiarity with air and how it is affected by temperature and pressure, ask them how they think wind forms. Wind is formed when air moves from one place to another due to differences in temperature and pressure. Other things can affect this movement as well. Ask the students what they think could affect wind movement and what affects wind can have on different areas of the earth (e.g., continents and oceans). Some examples of things that affect wind movement include landscapes (e.g., mountains act as an obstacle), climate, other wind parcels (fronts) and the earth’s rotation.