OLM Science6_16
- 1. Chapter 16 Understanding Weather Section 1 Water in the Air
- 2. Weather Condition of the atmosphere at a particular time and place
- 3. Water Cycle Continuous movement from sources such as lakes and oceans into the air
- 4. Condensation Water vapor cools and changes back to liquid droplets
- 5. Precipitation When rain, snow, sleet or hail falls from the clouds
- 6. Runoff Water usually from precipitation that flows across land
- 7. Transpiration Process in which plants release water vapor into the air
- 8. Evaporation Liquid water changes into water vapor
- 9. Humidity The amount of water vapor or moisture in the air
- 10. Relative Humidity The amount of moisture the air contains compared with the maximum amount it can hold
- 11. Psychrometer Instrument used to measure relative humidity
- 12. Condensation Process by which a gas becomes a liquid
- 13. Dew Point The temperature at which air must cool to be completely saturated
- 14. Cloud A collection of millions of tiny water droplets or ice crystals
- 15. Cumulus Clouds Puffy white clouds with flat bottoms
- 16. Stratus Clouds Clouds that form in layers
- 17. Cirrus Cloud Thin feathery, white clouds at high altitudes
- 19. Precipitation Water in solid or liquid form that falls to the Earth
- 22. Hail Solid precipitation that falls as balls
- 23. Rain Gauge An instrument for measuring the amount of rainfall
- 24. 1) Cloud that forms in layers 2) Puffy, white cloud with a flat bottom 3) Cloud that forms near the ground 4) Cloud that produces thunderstorms 5) Cloud that produces light, continuous rain 6) Thin, feathery, high-altitude cloud A) Fog B) Nimbostratus C) Stratus D) Cirrus E) Cumulonimbus F) Cumulus C F A E B D
- 25. Chapter 16 Understanding Weather Section 2 Air Masses and Fronts
- 26. Air Mass A large body of air that has similar temperature and moisture throughout
- 27. Cold Air Masses 3 North American Polar air masses Develop over land Develop over the Atlantic Ocean Develop over the Pacific Ocean
- 28. Warm Air Masses 4 North American Polar warm air masses Develop over the Desert region of Mexico Develop over the Atlantic Ocean Develop over the Pacific Ocean Gulf of Mexico
- 30. Front Boundary formed when two different air masses meet
- 31. Cold Front When a cold air mass meets and displaces a warm air mass
- 32. Warm Front When a warm air mass meets and overrides a cold air mass
- 33. Occluded Front Faster moving cold front overtakes a slower moving cold front
- 34. Stationary Front When a Cold air mass meets a Warm air mass and little movement occurs
- 35. Where do the air masses that are responsible for cold, winter weather in the United States come from? Canada, the North Atlantic Ocean & the North Pacific Ocean What is the weather like at a front? Cloudy and stormy When a warm air mass overrides a cold air mass a __________ forms. warm front
- 36. Chapter 16 Understanding Weather Section 3 Severe Weather
- 37. Severe Weather Weather that can cause property damage or even death
- 38. Thunderstorms Small intense weather systems that produce strong winds, heavy rain, lightning & thunder
- 39. Lightning Large electrical discharge that occurs between two opposite charged surfaces
- 41. Thunder The sound that results from the rapid expansion of air along the lightning strike
- 42. Severe Thunderstorms Severe thunderstorms produce one or more of the following conditions High winds Hail Flash Floods Tornadoes
- 43. Tornado Small rotating column of air that has high speeds and low central pressure that touches the ground.
- 45. Hurricane Large rotating tropical storm with wind speeds at least 119km/hr.
- 46. Hurricane Eye wall Cumulonimbus clouds that produce heavy rains & forceful winds
- 47. Hurricane Eye Center of the hurricane.
- 48. Rain Bands Spiraling bands of clouds
- 49. Name three examples of severe weather Thunderstorms, hurricanes, and tornadoes What is the relationship between a funnel cloud and a tornado? A funnel cloud is called a tornado when it makes contact with the Earth’s surface.
- 50. Hurricanes that form over the western Pacific Ocean are called __________, while those that begin in the Indian Ocean are called ___________. Typhoons – Cyclones Which type of a cloud would most likely lead you to predict a thunderstorm? a cumulonimbus cloud
- 51. Chapter 16 Understanding Weather Section 4 Forecasting the Weather
- 52. Weather Forecast A prediction of weather conditions over the next 3 to 5 days
- 53. Thermometer A tool used to measure air temperature
- 54. Barometer An instrument used to measure air pressure
- 55. Windsock or Wind Vane The wind enters through the wide end and exits through the narrow end. Therefore the wide end points toward the wind.
- 56. Anemometer An instrument used to measure wind speed
- 57. Weather Balloons Measure weather conditions as high as 30 km above earth
- 58. Radar Used to find the location, movement and intensity of precipitation
- 60. Weather Satellites Orbit the Earth and provide weather information that can not be obtained from the ground
- 61. Station Model A small circle showing the location of a weather station along with a set of symbols and numbers surrounding it that represent weather data
- 63. Isobars Lines that connect points of equal air pressure
- 64. What is the name of the tool used to measure each atmospheric condition. Wind Direction Air Pressure Air Temperature Wind Speed Windsock/Wind vane Barometer Thermometer Anemometer
- 65. References http://www.homeschoollearning.com/units/unit_09-17-01.shtml http://www.joyner-ranch.com/html/weather http://www.wasatchicewater.com/product.asp http://ww2010.atmos.uiuc.edu/%28Gl%29/guides/mtr/hyd/evap.rxml http://ww2010.atmos.uiuc.edu/%28Gl%29/guides/mtr/hyd/evap.rxml http://ww2010.atmos.uiuc.edu/%28Gl%29/guides/mtr/hyd/evap.rxml http://ww2010.atmos.uiuc.edu/%28Gl%29/guides/mtr/hyd/evap.rxml http://ww2010.atmos.uiuc.edu/%28Gl%29/guides/mtr/hyd/evap.rxml http://www.tempright.com/products.htm http://www.vaisala.com/Weather/archive/2004/03/11 http://jefferson.unl.edu/Burning/Forecast.htm http://jefferson.unl.edu/Burning/Forecast.htm http://www.ces.purdue.edu/pork/clipart/house.htm http://www.westseneca.wnyric.org http://schools.fcps.org/wfms/ziniewicz/clouds/cloud84.html http://www.weatherworks.com/cool_clouds.html http://www.evsc.virginia.edu/~evscta/EVSC250/clouds.html http://www.capetownskies.com/clouds-high.htm http://www.windows.ucar.edu/earth/images h ttp ://www. webskite .com/weather-seminar/hazards/ice. htm http://www.s-t.com/daily/12-96/12-28-96/a03wn028.htm http://www.cltskywarn.org/svrwxrelated.htm http://www.atmospheric-violence.com/
- 66. References http://www. essc . psu . edu /~ dbabb /Class_Extras.html http://www.mdrusa.net/Webpdr/pdrhailknowledgebase.htm http://www.aninoquisi.com/rain_gauge.htm http://www.harcourtschool.com/scienceglossary/define/gr5/air_mass5.html http://www.beeville.net/Weather http://www.geocities.com/five_six_crew/news.htm http://www.wdtv.com/weather/images/Weather_Review/Air%20Masses%20and%20Fronts.htm http://www.wdtv.com/weather/images/Weather_Review/Air%20Masses%20and%20Fronts.htm http://www.wdtv.com/weather/images/Weather_Review/Air%20Masses%20and%20Fronts.htm http://www.lawngeese.com/phptest/images?sortby=2 http://student.science.uva.nl/~skowalcz/physics http://crux.baker.edu/csaraf01/WEB111A/project/main.htm http://www.xbox100.com/forums/showthread.php?s=&threadid=9223 http://www.ahoycaptain.com/shop/weemsplath_550700_barometer.html http://carolyn.socklabs.com/ http:// cwet . http://solar. calvin . edu /performance/wind_speed. php nic.in/WRA.htm www.harcourtschool.com/.../weather_b6c.html http://www.stolaf.edu/other/cegsic/itase/images/traverse_2001/pages/weather_balloon4.html http://www.sierraphotography.com/wxnotes http://abclocal.go.com/kfsn/weather http://www.phys.unsw.edu.au/~map/weather/notes/noaa_sats.html http://www.californiaspaceauthority.org/html/visions-from-above/weather.html http://members.hmcltd.net/rosen http://www.eos.ubc.ca/courses/atsc201/BrooksCole/MetSciEngr/satellite.html http://www.geog.ubc.ca/weather/wd_index.html