| A | B |
|---|
| air pressure | weight of the atmosphere, measured with a barometer |
| air mass | body of air with the same temperature and air pressure |
| anemometer | measures wind speed |
| atmosphere | layers of air surrounding the earth |
| chlorofluorocarbons | causes loss of ozone in the upper atmosphere |
| data | collected information from an experiment |
| doldrums | low pressure band around the equator where there is little wind |
| front | an area where two air masses of different temperatures and pressures meet |
| graph | picture that shows relation between sets of data |
| hypothesis | an idea that can be tested by experiment or observation |
