Observing Weather

1. Observing Weather

2. Lesson One • What is atmosphere? • -The air that surrounds the Earth • What is weather? • -What is happening in the atmosphere at a certain place • Three properties of air? • -Air takes up space, 2) has weight, 3) exerts pressure on things • What does the ozone do? • -Absorbs harmful rays from the sun. • List three things that are parts of the weather. • -temperature, precipitation, and wind • What might Earth be like without the atmosphere? • -there would be no weather, no life because there would be no air, no • atmosphere to hold hot air so it would be cold on the dark side of the • planet and hot on the sunny side of the planet. • Where does weather happen? • -in the layer next to Earth’s surface- Troposphere

3. Lesson Two What is temperature? -a measure of how hot or cold something is How is precipitation measured? -by using a rain gauge or a snowboard What is wind? -the movement of air What is an air mass? A large body of air with the same temperature and moisture What is a front? A place where tow air masses of different temperatures meets What makes the wind blow? Differences in air pressure; wind blows from areas of high pressure toward areas of low pressure What changes happen when a front passes through an area? -clouds and rain are likely. After the front passes, the temperature changes. An anemometer measures wind___. -Speed

4. Lesson Three Name three sources of weather data -stations, satellites, National Weather Service, Doppler radar, weather planes, weather balloons, computers What is a weather map? -a map that shows weather data fro a large area What kinds of weather data do we get from airplanes? -data about storms, such as temperature and pressure How do satellites help meteorologists predict the weather? Satellites send to Earth pictures of storms and clouds. Meteorologists can use a series of these pictures to see the direction and speed of weather movement. What is a station model? A set of symbols that shows the current weather at one place Why do meteorologists collect data many times each day? Weather is always changing. Meteorologists must know about these changes to predict weather. A weather map does not show___. -seasons

5. Review

6. Vocabulary wind front precipitation anemometer temperature atmosphere weather map weather

7. Match the Terms to the Pictures 1 mesosphere troposphere thermosphere stratosphere 2 3 4

8. Quiz

9. Vocabulary • wind (c) weather (e) front (g) precipitation • weather map (d) atmosphere (f) temperature (h) anemometer • 1. ___Map that shows weather data for a large area • 2. ___Place where two air masses of different temperatures meet • 3. ___Measurement of how hot or cold something is • 4. ___Any kind of water that falls from the sky • 5. ___Movement of air • ___Tool for measuring wind speed • ___Air that surrounds Earth • ___What is happening in the atmosphere at a certain place

10. Science Concepts and Understanding • 9. Earth is kept warm by___ • A) layers of ice B) the oceans C) clouds D) space • 10. To measure temperature, you would use___ • F) rain gauge G) weather map H) thermometer J) snow board • 11. To measure precipitation, you would use a ___ • A) front B) thermometer C) rain gauge D) weather map • 12. Which of the following kinds of weather would probably have the strongest winds? • F) thunderstorm G) hurricane H) blizzard J) sunny day • 13. When a cold front moves through your town, you can expect the weather to___ • A) stay the same B) become calm C) warm up D) cool off • 14. When a warm front moves through your town, you can expect the weather to ___F) warm up G) become calm H) stay the same J) cool off

11. Science Concepts and Understanding • 15. Wind blows because of differences in___ • A) temperature B) precipitation C) air pressure D) air weight • 16. Which of the following tools would a meteorologist NOT use to make a weather map? • F) computers G) satellites H) anemometers J) umbrellas • 17. In places where warm and cold air meet, there is likely to be___ • A) precipitation B) sunshine C) a tornado D) a flood • 18. You use an anemometer to measure___ • F) rainfall G) wind speed H) temperature J) snowfall • 19. Which layer of the atmosphere do we live in? • A) thermosphere B) mesosphere C) stratosphere D) troposphere • 20. Which layer contains the ozone? • F) thermosphere G) mesosphere H) stratosphere J) troposphere

12. Critical Thinking • Today you are in Illinois, where it is raining. Tomorrow you will be traveling east to New York, where it is cloudy. What should you take with you? How do you know this? • People who live near rivers need to measure precipitation so they can predict when a flood might occur. Think of another reason why people might want to measure precipitation. • Why do meteorologists fly airplanes into the middle of hurricanes? • Use word bank to answer questions 24-25 • rain gauge thermometer anemometer weather map • Which tools would a meteorologist use to measure the weather? • What would a meteorologist use to record the weather and interpret data? Process Skills Application

13. B • E • F • G • A • H • D • C • A • H • C • G • D • F • C • J • A • G • D • H • RAIN GEAR, WEATHER TRAVELS FROM WEST TO EAST • FARMERS MIGHT MEASURE PRECIPITATION SO THEY CAN PLAN WHAT CROPS TO PLANT • TO GATHER DATA ABOUT THE HURRICANE; TO DETERMINE THE FORCE AND DIRECTION OF THE HURRICANE • RAIN GAUGE, THERMOMETER, ANEMOMETER • WEATHER MAP