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Semester 1 Review Jeopardy The Sun Rotation Vs Revolution Misc. Electromagnetic Spectrum Planets 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500 Sunspots cycle every __________ years. Answer 11 Home Our sun is a _________ sized star. Answer Medium Home What 2 elements make up most of the sun’s mass? Answer helium and hydrogen Home Sudden disturbances in the Earth’s magnetic field are called __________ Answer geomagnetic storms Home The process by which the sun generates energy Answer Nuclear Fusion Home Because Earth’s revolution takes 365 ¼ days, ___________ was established. Answer Leap Year Home The Coriolis effect provides evidence that the Earth (rotates or revolves) Answer Rotation on its axis Home A constellation’s changing position in the sky over a period of several weeks is evidence of (rotation or revolution) Answer Revolution around the sun Home Who proposed a heliocentric model of our solar system? Answer Copernicus Home What occurs when one celestial body passes through the shadow of another? Answer Eclipse . Home What milestone in human space exploration took place in 1969? Answer First man on the moon Home What happens when the shadow of one celestial body falls on another? Answer Eclipse Home A body that orbits a celestial body that is greater in mass is a________ Answer Satalite Home The Milky Way is a _______ galaxy. Answer Spiral Home What 3 conditions are necessary to support life on Earth? Answer Oxygen, Temperature, Water Home Different colors are the result of ____________. Answer Varying wavelengths of light Home A star moving away from Earth has a spectrum that is shifted toward _____ Answer Red Home visible light, radio waves, X rays, infrared light, and ultraviolet light Answer Electromagnetic Spectrum Home A star moving toward you shifts to what color? Answer Blue Home Analyzing the light a star emits can tell astronomers what 2 things? Answer temperature and composition Home Which celestial body was changed from being a planet to a dwarf planet? Answer Pluto Home The Earth formed approximately how many years ago? Answer 4.6 billion years Home The time it takes for a body to complete a single orbit. Answer Orbital Period Home Usually seen close to Earth’s magnetic poles Answer Auroras Home Time when the Northern Hemisphere has the fewest daylight hours Answer Winter Solstice Home