Chapter 7 Vocab

2. A dark area of has on the sun’s surface that is cooler than the surrounding areas
6. A model of the universe in which Earth is at the center of the revolving planets and stars
7. The inner layer of the sun’s atmosphere that gives off its visible light; the sun's surface
11. One of the small asteroid-like bodies that formed the building blocks of the planets
14. A region of very tightly packed gas in the sun’s interior where energy is transferred mainly in the form of electromagnetic radiation
16. An eruption of has from the sun’s surface that occurs when the loops in sunspots regions connect
17. A huge Prominence reddish loop of gas that protrudes from the sun’s surface

1. The central region of the sun, nuclear fusion takes place here
3. A stream of electrically charged particles that emanate from the sun’s corona
4. An object that orbits the sun and is spherical, but has not cleared the area of its orbit
5. The middle layer of the sun's atmosphere
8. An object that orbits a star and is large enough to be rounded by its own gravity
9. A model of the solar system in which Earth and the other planets revolve around the sun
10. The outermost layer of the sun's atmosphere
12. The system consisting of the sun and the planets and other objects that revolve around it
13. The outermost layer of the sun’s interior
15. The process in which two atomic nuclei combine to form a larger nucleus, forming a heavier element and releasing huge amounts of energy