Observing the Solar System

4. Huge, reddish loops of gas that connect sunspots
6. "solar sneeze"; eruptions of gas from the sun in space
7. Sun-centered model of the universe; Galileo Galilei was persecuted because of this theories about this.
9. center of a planet, moon, or star
14. This trapping of heat by the atmosphere
16. outermost layer of the sun’s interior
17. oval-shaped orbit of a planet
18. middle layer of the sun’s atmosphere; gives the reddish glow of the sun during a solar eclipse
19. rocky objects within the asteroid belt
20. inner layer of the sun’s atmosphere; the "surface" of the sun we can see
22. region of sun between the core and the convection zone; energy can take more than 100,000 years to move through it
24. center of a comet
25. belt region of the solar system between the orbits of Mars and Jupiter
26. Jupiter, Saturn, Neptune, Uranus; known for being large, gaseos, and having many moons and at least 1 ring

1. areas of gas on the sun’s surface that are cooler than the gases around them
2. outer layer of the sun's atmosphere; the whitish part of the sun we can see during a solar eclipse
3. source of energy within the sun; hydrogen atoms join together to form helium
5. movement of solar energy from the sun to outer space
8. inner planets, known for being small and rocky satellites of the sun
10. fuzzy, outer layer of a comet
11. chunk of rock or dust in space coming from comets and asteroids
12. Earth-centered model of the universe; proposed by Aristole
13. thin disk of small particles of ice and rock orbiting a planet
15. "dirty snowball"; loose collections of ice, dust, and small rocky particles whose orbits are usually very long, narrow ellipses
21. doughnut-shaped region that extends from beyond Neptune’s orbit; place where Pluto and most of the dwarf planets are found
23. spherical region of comets that surrounds the solar system out to more than 1,000 times the distance between Pluto and the sun; place where comets are found