Name: ________________________________ Weather & Climate Notes 7th Grade Science – Mrs. Stabler & Mrs. Raimo Date: __________________ Period: ________ Air 1. Although we cannot see air it has ______________. 2. Because __________ has mass, it also has _______________. 3. What is air pressure? _____________________________________________________________________________________ _____________________________________________________________________________________ The Atmosphere 4. What is the atmosphere? _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 5. What are some reasons the atmosphere is essential to life on Earth? ________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 6. Each layer has ______________ ________________, including ____________________ of gases, and how _____________________ changes with ______________________. 7. What is altitude? _____________________________________________________________________________________ The Troposphere 8. What is the troposphere? _____________________________________________________________________________________ 9. The troposphere extends from the face of Earth’s _________________ to altitudes between ______ - ______ km. 10. What happens to temperature as you move up higher in the troposphere? _____________________________________________________________________________________ 11. This is the layer where ____________ of Earth’s _________________ occurs. The Stratosphere 12. What is the stratosphere? _____________________________________________________________________________________ 13. The stratosphere extends from about ______ km to about ______ km. 14. The stratosphere contains the ozone layer. What is the ozone layer? _____________________________________________________________________________________ _____________________________________________________________________________________ 15. Due to the __________ layer, temperatures ________________ as altitude increases within the __________________. The Mesosphere and Thermosphere 16. The mesosphere extends from the ___________________ (____ km) to about _____ km. 17. The thermosphere can extend from the ______________________ to more than ________ km above Earth’s surface. 18. Compare the size of these layers to the troposphere and stratosphere. _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ 19. The ________________ is a region within the ___________________ and ___________________ that contains __________. 20. Where is the ionosphere? (in terms of altitude) _____________________________________________________________________________________ 21. What are auroras? and how are they created? _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ The Exosphere 22. What is the exosphere? _____________________________________________________________________________________ 23. The exosphere extends from _____ km out to ____________. It has no definite ______, the molecules here can _____________ Earth’s ____________ and travel into _____________. 24. ________________ and _____________ is so low here that individual gas molecules rarely ____________ each other. 25. What causes the molecules here to move at incredibly fast speeds? _____________________________________________________________________________________ Energy in the Atmosphere 26. Energy in the form of ______________ is transferred throughout the ________________. 27. Type of Heat Transfer Definition Radiation Conduction Convection 28. How is the troposphere mostly heated? ___________________________________ Weather Patterns Winds 29. What is wind? _____________________________________________________________________________________ _____________________________________________________________________________________ 30. Winds are caused by _________________ in _______ _______________. 31. How are winds described? _____________________________________________________________________________________ 32. Wind _______________ is determined with a wind ___________. 33. Wind ___________ is measured with an _________________. Local Winds 34. What are local winds? _____________________________________________________________________________________ 35. Local winds are caused by _______________ heating of Earth’s surface within a ____________ area. Global Winds 36. What are global winds? _____________________________________________________________________________________ _____________________________________________________________________________________ 37. What causes global winds? _____________________________________________________________________________________ 38. ___________ air rises at the equator and ___________ air sinks at the poles, therefore air _____________ tends to be lower near the _______________ and _________________ near the poles. The Coriolis Effect 39. What is the Coriolis Effect? _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ 40. Global winds in the ______________ hemisphere gradually turn towards the ________ and in the _______________ hemisphere winds cure to the _________. Global Wind Belts 41. Wind Belt Doldrums Horse Latitudes Trade Winds Prevailing Westerlies Polar Easterlies Jet Streams Definition Air Masses 42. Scientists classify _______ __________ according to _______ characteristics: ____________________ and ________________. 43. ________________ affects air ______________. 44. ___________, dense air has ____________ pressure, while __________, less dense air has ______________ pressure. Type of Air Mass Description Tropical Polar Maritime Continental Type of Air Mass Maritime Tropical Maritime Polar Continental Tropical Continental Polar Description