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Last Name: ______________ First Name: _______________ Date: 3-9-2009 Study guide for Weather Assessment Scientists who study weather and try to predict it are called _____________________ I. The Atmosphere A. The atmosphere is the layer of ________________ that surrounds the ________ B. As you rise upward in the atmosphere pressure ________________ C. The less mass in a given volume of air the ___________ dense the air D. Earth’s atmosphere traps heat from the sun, which allows _________ to exist as a __________ E. The ozone layer protects living things on Earth from ________________ _____________________ F. When climbing a high mountain, you get out of breath easily because the percentage of oxygen in the atmosphere ______________ II. III. IV. Thermodynamics A. Heat transfer between two substances that are in contact is called _______________. B. Heat from the sun reaches you by _________________________ C. Convection takes place because cold air is _________ dense D. Cool air tends to be more ___________ and flow under _________ air E. The suns rays are least direct near the ___________ F. As you rise upwards in the atmosphere air pressure __________ G. The total energy of motion Winds A. Winds are caused by differences in ______ ___________________. B. Global winds generally blow in specific ______________ over long ________________. C. Earth’s rotation makes global winds curve this is called the ____________ _____________________. D. The prevailing westerlies, the major wind belts over the continental United States generally push air masses from ___________ to ____________ E. The less mass in a given volume of air the less ______________ the air Water A. The freezing point of pure water on the Celsius scale is ___ degrees C B. Two conditions are required for the formation of clouds are the cooling of the air and the presence of __________________ in the air C. Any form of water that falls from clouds is called ___________________ Last Name: ______________ First Name: _______________ Date: 3-9-2009 Study guide for Weather Assessment V. Air Masses and Fronts A. Cold, dry air affecting the northern United States in winter often comes from ______________________ _________________ air masses. B. What kind of weather would continental tropical air mass that formed over northern Mexico bring to the southwestern United States? _____________________ and _____________________ C. When a rapidly moving cold air mass overtakes a slow-moving warm air The result is a ____________ front D. When a warm air mass and a cold air mass meet and neither can move the result is a __________________________ front E. When a warm air mass overtakes a cold air mass it forms a ___________ ________________ VI . Local Winds A. During the day which heats up faster (land,water) B. Does a land breeze blow toward the (land, water) C. Does a sea breeze happen during the (day, night)