Across
- 2. a description of how something works or why something happens
- 7. an arrangement of stars as seen from Earth
- 8. observations or measurements recorded in an investigation
- 10. an attempt to find out about something
- 12. a scientist who studies stars, planets, and other objects in the universe
- 14. a period of time that is 24 hours long and includes daytime and nighttime
- 15. a huge object in space that gives off heat and light
- 16. the sun, the planets that orbit the sun, and other objects that orbit the sun
Down
- 1. information that supports an answer to a question
- 3. to make a picture in your mind using information from different sources
- 4. the only star in our solar system
- 5. the pull between Earth and other objects, which acts even without touching
- 6. something scientists make to answer questions about the real world
- 9. the length of time it takes for Earth to orbit the sun once
- 11. something we observe to be similar over and over again
- 13. to move in a regular path around something
