Sun notes.pdf

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Glossary of terms:Grades 3-51. Astronaut-a person traveling in space.2. Aurora-bright colorful lights formed by action of solar wind particleswith the Earth’s magnetosphere exciting gas molecules in the air.3. Corona-the Sun’s atmosphere.4. Coronal Mass Ejections-the gigantic plasma eruptions from the Sun’scorona.5. Convection Zone-part of the Sun where plasma moves up and down likewater in a boiling pot.6. Cycle-a pattern7. Magnetosphere-area around the Earth where magnetic field lines controlthe movement of charged particles.8. Photon-packet of light energy9. Photosphere-the visible part of the Sun.10. Plasma-a fourth state of matter made up of positively charged particlesand negatively charged electrons.11. Satellite-a free-flying object that orbits the Earth.12. Solar Flare-an explosive release of energy from the Sun.13. Solar Maximum-time period of an increase in Sun activity (energyrelease).14. Solar Minimum-time period of a decrease in Sun activity.15. Solar Wind-a constant flow of plasma expanding from the corona intointerplanetary space.8
16. Star-a celestial object that produces energy from nuclear fusion reactionsoccurring in its core.17. Sunspot-a region on the Sun’s surface that is darker and cooler than thesurrounding region. It has a very active magnetic field.9
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