Earth Science Warm-ups Monday October 5, 2009 1. Describe the most common type of fusion in the sun. Please define the following vocab: Radiative zone Convective zone Photosphere Warm up 1. Describe the most common type of fusion in the sun. Answer: he fusion of hydrogen into helium Vocab Radiative zone: region surrounding the core of the sun in which energy is transferred in the form of electromagnetic waves. Convective zone: the region of the sun’s radiative zone in which moving gases transfer energy. Photosphere : the innermost layer of the solar atmosphere; the light sphere Earth Science Warm-ups Chapter 28 Wed October 7 and Thur October 8, 2009 2. How does energy transfer in the radiative zone differ from the transfer of energy in the convective zone? Please define the following vocab: Chromosphere Corona Solar wind Warm-up 2. How does energy transfer in the radiative zone differ from the transfer of energy in the convective zone? Radiation is the transfer of energy by electromagnetic waves. Convection is the transfer of energy by moving liquids or gases. Vocab Chromosphere: a thin layer of the sun’s atmosphere that lies above the photosphere and flows with a reddish light; color sphere Corona: the outermost layer of the sun’s atmosphere Solar wind: electrically charges atomic particles that stream out into space through holes in the sun’s corona Earth Science Chapter 28 Friday October 10, 2009 HAPPY FRIDAY!!!!!!!!! 3. Why are sunspots cooler than the surrounding area? Please define today’s vocab: Sunspots Sunspot cycle Prominence Warm up 3. Why are sunspots cooler than the surrounding area? Answer: Because magnetic fields slow down convection, less heat is transferred from the core to the photosphere. Vocab Sunspots: cool dark area of gas within the photosphere, caused by powerful magnetic fields. Sunspot cycle: periodic variation in the number of sunspots that occurs approximately every 11 years. Prominence: A cloud of glowing gases that arch high above the sun’s surface. Earth Science Warm-up Monday October 12, 2009 4. How are prominences different from solar flares? Please define today’s vocab: Solar Flare Auroras Vocab Solar Flare- Sudden, violent eruption of electrically charged atomic particles from the sun’s surface. Auroras- Sheets of colored light produced by a magnetic storm in the earth’s upper atmosphere Earth Science Warm-up Tuesday October 13, 2009 And Thursday October 15, 2009 5. What two forces caused the solar nebula to develop into the sun? Please define today’s vocab: Solar system Planets Nebular theory Solar nebula Warm-up 5. What two forces caused the solar nebula to develop into the sun? Answer: Heat from collisions and pressure from the force of gravity. Vocab Solar system: the sun and the bodies that revolve around it. Planets: any one of the eight major bodies that orbit our sun. Nebular theory: the theory that the sun and the planets condensed out of a spinning cloud of gas and dust Solar nebula cloud of dust and gas that developed into the solar system.
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