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D - Science - Unit 7
Chapter - Predicting the Weather
| Question | Answer |
|---|---|
| What is the first step in forecasting weather? | to collect data |
| How is data collected for forecasting weather? | simple, direct observations or through the use of instruments |
| If a barometer shows that the air pressure is falling, what change in the weather can you expect? | an approaching low-pressure area, possibly bringing rain or snow |
| What type of clouds form on warm afternoons when warm air rises? | cumulus clouds |
| If you see cumulus clouds growing larger and taller, what can you expect them to become? | cumulonimbus clouds that may produce a thunderstorm |
| If you can see thin cirrus clouds high in the sky, what might be approaching? | a warm front |
| Who are meteorologists? | scientists who study the causes of weather and try to predict it |
| What do meteorologists use to analyze weather data and to prepare weather forecasts? | maps, charts and computers |
| Where do weather reporters get their information? | National Weather Service |
| What does the National Weather Service use to gather weather data? | balloons, satellites, radar, and surface instruments |
| What are isobars? | lines joining places on the map that have the same air pressure |
| What does Iso mean? | equal |
| What does bar mean? | pressure |
| What are the numbers on the isobars? | pressure readings |
| What are isotherms? | lines joining places that have the same temperature |
| How are isotherms labeled? | degrees in Fahrenheit or Celsius |
| What do standard symbols on weather maps show? | fronts, areas of high and low pressure, types of precipitation and temperatures |
| On a newspaper weather map, what symbol is used to show low pressure areas? | the letter L |
| On a newspaper weather map, what symbol is used to show high pressure areas? | the letter H |
| On a newspaper weather map, what symbol is used to show precipitation? | raindrop slanted lines and snowflake symbols |
| On a newspaper weather map, what symbol is used to show the direction that a cold front is moving? | triangles |
| On a newspaper weather map, what symbol is used to show the direction that a warm front is moving? | half-circles |
Created by:
lprinke
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