Across
- 4. The length of time it takes for the Earth to orbit the Sun.
- 6. A scientist who studies the stars, planets, and other objects in the sky
- 8. A huge object in space that gives off heat and light
- 9. Observations or measurements recorded in an investigation
- 11. Something we observe to be similar over and over again
- 13. An attempt to find out about something
- 15. A group of stars that form a pattern in the sky as seen from Earth
- 16. When one object moves around another object in a path
- 17. An invisible force that pulls all objects to Earth's center
Down
- 1. A period of 24 hours and includes daytime and nighttime
- 2. The planet we live on
- 3. Information that supports an answer to a question
- 5. A description of how something works or why something happens
- 7. Something scientists make to answer questions about the real world
- 8. The only star in our solar system
- 10. When an object spins in place or on an axis
- 12. To make a picture in your mind using information from different sources
- 14. system The sun, planets that orbit the sun, and other objects that revolve around the sun