Astronomy

4. A phase of the moon where it is growing in light. It leads to the full moon.
7. when the earth is furthest from the sun.
8. the oval shape of an object's orbit.
10. When the earth is closest to the sun.
11. Indicates an object is moving away from us. Stretched waves.
13. The inner planets. Dense and made out of rock.
15. a phase of the moon where less than half of the moon is illuminated.
17. A cloud of dust and gas in space.
19. The ________ sequence stars are stars with average temperature, luminosity,and size.
20. A chart in the reference table that tells you about stars.
23. Earth spinning on its axis giving us our day.
25. The amount of energy a star emits
27. The outer planets. Large gas giants.
28. the solstice that occurs on June 21.
29. A phase of the moon where more than half of the moon is illuminated.

1. the solstice that occurs on december 21
2. the effect where sound waves and light waves are stretched and compressed based on movement.
3. Earth spins on it's _____ that is tilted 23.5 degrees
5. A phase of the moon where it is growing dark. It is after the full moon.
6. Indicates an object is moving towards us. Compressed waves.
9. a large sphere of gas that emits light, heat, and radiation
12. the theory on how the universe formed. The universe started as a small, hot, dense space then expanded rapidly.
14. the degree of ovalness of an objects orbit.
16. Fusion What fuels stars and creates heat, light, and energy.
18. when there are equal amounts of sunlight and darkness. March 21 and September 21
21. Earth orbiting the sun. Gives us our year.
22. evidence of earth's rotation. Objects being deflected from a straight line.
24. The force that pulls things together.
26. A dark spot on the sun that is colder than the surrounding area. Occurs every 11 years.