2 Teacher Page Science 6th Grade Created by Paula Smith VI.A.2, VI.B.2/SC 5This presentation is intended to introduce or review material. The student will identify each type of front on a weather map using their symbols, determine which way the front is moving, and predict relative temperature using a weather map.StartEndMAP TAPWeather Fronts
3 Dew Point and Cloud Formation Dew Point: The temperature at which water condenses (turns to liquid).Like sweat on a can of soda.Usually happens at cold temperaturesClouds form when water cools down to the dew point.As air rises it gets colder, water condenses, and clouds form.MAP TAPWeather Fronts
4 Air Mass A large body of air with similar temperature and moisture. Air masses form over large land or water masses.MAP TAPWeather Fronts
5 Frontal Boundaries Where air masses interact – also known as a front. 4 kinds of fronts:Cold frontWarm frontOccluded frontStationary frontMAP TAPWeather Fronts
6 Cold Front A cold air mass is replacing a warmer air mass. Back toactivityA cold air mass is replacing a warmer air mass.Shown on a weather map by a blue line with triangles pointing the direction the cool air is moving.
7 Warm Front Warm air mass replacing a cooler air mass. Back toactivityWarm air mass replacing a cooler air mass.Shown on a weather map by a red line with half circles pointing the direction the warm air is moving.MAP TAPWeather Fronts
8 Occluded Fronts When a warm front is trapped by 2 cold fronts. Shown on a weather map by a purple line with alternating triangles and semicircles pointing the direction the front is moving.Back toactivityMAP TAPWeather Fronts
9 Stationary Fronts A front that stops moving or is moving very slowly. Back toactivityStationary FrontsA front that stops moving or is moving very slowly.Shown on a weather map with alternating red semicircles pointing away from the warm air and blue triangles pointing away from the cold air.MAP TAP
10 Isobars Isobars: Lines connecting equal points of air pressure. H: High PressureL: Low Pressure-Where is the rain?High or Low pressure?MAP TAPWeather Fronts
17 Be a Weather Forecaster You are planning to travel to Alabama in 2 days. The high temperature there for today is 68º F.Use the map to help you predict whether the temperature in Alabama will increase, decrease, or stay the same. Explain why you think so.Weather Fronts
18 Be a Weather Forecaster There is a cold front approaching. The temperatures will probably be cooler behind the front.
19 Be a Weather Forecaster Of course, meteorologists (weather forecasters) use much more data than fronts and air masses to help them forecast the weather more accurately. But any forecast is just a prediction of what might happen. Even with the best data, weather forecasts can be wrong.MAP TAPWeather Fronts