Across
- 1. lumps of ice , dust, and rock that circle the sun
- 3. a big circular body tat moves in an elliptical orbit around a things
- 5. traveling around another object
- 8. a small object that orbits a big object
- 10. an object in the night's sky that lights up and moves
- 12. electromagnetic radiation
- 13. a large natural body that travels around the earth
- 14. a measure of the amount of matter in objects
- 15. and instrument used to see far away
Down
- 2. lines up all electromagnetic based on their wavelenghts
- 4. an imaginary line about which a body rotates
- 6. this is a sphere made of mostly ice material
- 7. the science that deals with the universe
- 9. a unit of measurement that measures the distance that light travels in a year
- 11. a number used to multiply one object to get another