| A | B |
| crater | There was a large ___ in the ground. |
| universe | The earth is a tiny part of our _____. |
| spectrum | A rainbow is a color ________. |
| astronomer | A person who studies the sun, moon, stars and space is an ____. |
| constellation | The Big Dipper is a well known _______. |
| comet | A ______ flies through space. |
| satellite | A ____ is something that revolves around a planet. |
| revolve | The earth _____ around the sun. |
| celestial | Things relating to the sky are ___________. |
| meteor | A _____ is a shooting star. |