| Across |
| 2. |
a scientist who studies objects in the universe |
| 7. |
an attempt to find out about something |
| 8. |
the only star in our solar system |
| 9. |
information that supports an answer to a question |
| 12. |
a period of time that is 24 hours long |
| 13. |
the pull between Earth and other objects |
| 14. |
to move in a regular path around something |
| 15. |
the length of time it takes for Earth to orbit the sun once |
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| Down |
| 1. |
a huge object in space that gives off heat and light |
| 3. |
description of how or why something works |
| 4. |
scientists make them to answer questions about the world |
| 5. |
something we observe to be similar over and over again |
| 6. |
an arrangement of stars as seen from Earth |
| 10. |
to make a mental picture using info from various sources |
| 11. |
observations or measurements recorded in an investigation |
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