| A | B |
| Air in low pressure is | warm and moist |
| Air in high pressure is | cool and dry |
| The altitude of Polaris equals | the latitude of the observer |
| A rising barometer means | good weather is coming |
| A falling barometer means | bad weather is coming |
| A steady barometer means | no change |
| Fronts occur where | air masses meet |
| The most likely areas for precipitation are | the leading edges of air masses (fronts) |
| The circulation around a low pressure system is | counterclockwise, toward the center,where are rises |
| The circulation around a high pressure system is | clockwise,away from the center,where air sinks |
| Weather systems in the US usually move | from west to east |
| CT | warm and dry |
| CP | cool and dry |
| MT | warm and moist |
| MP | cool and moist |