Across
- 4. a group of stars that make a pattern in the sky
- 6. observations or measurements recorded in an investigation
- 7. system the sun, planets that orbit the sun
- 9. make a picture in your mind
- 10. scientist who studies stars, planets
- 11. to move in a regular path around something
Down
- 1. the planet we live on
- 2. an illustration that shows how something works
- 3. an attempt to find out about something
- 5. a unit of measurement that is equal the distance light travels
- 7. a ball-shaped object
- 8. the distance across a circle or sphere
