6th Grade Science - Chapters 10 & 11 Review

5. Planet most like Earth.
9. planet known for its rings
11. Layer of the sun's atmosphere above the surface
13. A telescope that uses lenses to bend light.
14. The outer layer of the sun's atmosphere.
15. Unmanned research spacecraft
16. An object that revolves around another object in space
19. The only planet in the solar system on which life is known to exist
20. The different shapes of the moon you see from Earth caused by the sun lighting its surface.
22. Closest to the Earth, brightest object in the morning sky, and is often considered Earth's twin.
24. A group of stars that form a pattern in the sky
25. The visible surface of the sun
26. are glowing balls of gases that produce light.
29. The apparent change in position over time of an object when seen from different places

1. The most brightest and most massive stars
2. Planet with the most violent weather.
3. planet closest to the Sun; has a thin atmosphere with temperature extremes
4. A star's brightness.
6. A star that regularly changes in brightness.
7. A star that suddenly becomes brighter
8. Instruments which break light down into colors
10. A beautiful display of light in the sky that come from interactions between particles from the sun's atmosphere and gases in the ionosphere.
12. A rapidly spinning neutron star that produces radio waves
17. Largest planet; known for its Great Red Spot
18. The hottest color stars.
21. Closest star to earth.
23. A large cloud of dust and gas in space
27. cluster A group of stars held together by gravitational attraction
28. Smaller stars