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The Sun
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Sun:center of the Solar System
8:how long it takes for light from Sun to reach Earth
Nuclearfusion:how the Sun generates its energy
radioactivezone: where solar material is so hot and dense that thermal radiation is sufficient to transfer the heat of the core outward
photons: ions of hydrogen and helium give off _____
Convectionzone:thermal columns carrying the hot material cools off, and it goes back to receive more heat from the radioactive zone
photosphere:The visible surface of the Sun
Atmosphere:parts above the photosphere
magneticfield: leads to many effects that are collectively called solar activity
Aristarchus:first proposed the theory that the Sun was the center
Copernicus:fully developed the heliocentric theory
Galileo:invented the telescope
Lockyer:Lockyer proposed a meteoritic hypothesis for the formation and evolution of the Sun.
Einstein:provided the essential clue to the source of the Sun's energy output with his E = mc2.
Eddington:pressures and temperatures at the core of the Sun could produce a nuclear fusion reaction that merged hydrogen (protons) into helium nuclei
Burbidge:published "Synthesis of the Elements in Stars".
The Sun
Across:2. | thermal columns carrying the hot material cools off, and it goes back to receive more heat from the radioactive zone | 5. | Lockyer proposed a meteoritic hypothesis for the formation and evolution of the Sun. | 7. | leads to many effects that are collectively called solar activity | 11. | center of the Solar System | 12. | provided the essential clue to the source of the Sun's energy output with his E = mc2. | 13. | The visible surface of the Sun | 14. | published "Synthesis of the Elements in Stars". |
| | Down:1. | fully developed the heliocentric theory | 3. | first proposed the theory that the Sun was the center | 4. | how the Sun generates its energy | 6. | where solar material is so hot and dense that thermal radiation is sufficient to transfer the heat of the core outward | 8. | pressures and temperatures at the core of the Sun could produce a nuclear fusion reaction that merged hydrogen (protons) into helium nuclei | 9. | invented the telescope | 10. | ions of hydrogen and helium give off _____ |
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© 2012
PuzzleFast.com, Noncommercial Use Only
The Sun
Across:2. | thermal columns carrying the hot material cools off, and it goes back to receive more heat from the radioactive zone | 5. | Lockyer proposed a meteoritic hypothesis for the formation and evolution of the Sun. | 7. | leads to many effects that are collectively called solar activity | 11. | center of the Solar System | 12. | provided the essential clue to the source of the Sun's energy output with his E = mc2. | 13. | The visible surface of the Sun | 14. | published "Synthesis of the Elements in Stars". |
| | Down:1. | fully developed the heliocentric theory | 3. | first proposed the theory that the Sun was the center | 4. | how the Sun generates its energy | 6. | where solar material is so hot and dense that thermal radiation is sufficient to transfer the heat of the core outward | 8. | pressures and temperatures at the core of the Sun could produce a nuclear fusion reaction that merged hydrogen (protons) into helium nuclei | 9. | invented the telescope | 10. | ions of hydrogen and helium give off _____ |
| |
© 2012
PuzzleFast.com, Noncommercial Use Only