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1. | The second planet from the Sun |
2. | This is a relatively small object made of dirt and ice that has a tail that appears as it gets closer to the Sun |
4. | This is a meteoroid that burns in the Earth's atmosphere |
5. | This planet is the hottest because of the greenhouse effect trapping heat |
6. | The amount of time it takes for the Moon to go through all of its phases which is the amount of time it takes for one rotation and one revolution |
7. | This planet has such a low density that it would be able to float in water |
9. | The amount of time it takes for the Earth to orbit the Sun once |
11. | The lighter region of a shadow of an eclipse |
13. | This word describes the right part of the Moon shining |
14. | Second Human to step on the Moon |
17. | Something that orbits another object |
19. | This word describes a small part of the Moon shining |
20. | A meteoroid that survives Earth's atmosphere and hits the Earth |
22. | Mainly the 8th planet from sun, but sometimes the last |
24. | A small particle from an asteroid or comet that orbits the Sun |
25. | Our sun is one of these |
27. | This is the largest planet in our solar system |
28. | The third planet from the Sun |
29. | This word describes a large part of the Moon shining |
30. | First Human in space (Russian) |
35. | First Human to step on the Moon |
36. | This is what causes the seasons |
37. | This is what the last 5 planets are called |
39. | A word to describe an orbit |
40. | First Human to orbit the Earth |
44. | This country was the USA's main competitor in early space travel |
45. | A space instrument that we don't get back that goes into dangerous places |
48. | This planet spins on its side |
50. | This type of eclipse is when the Earth is in between the Sun and Moon |
52. | The darker region of a shadow of an eclipse |