Across
- 6. to act against
- 8. largest stars
- 11. the type of force needed to oppose gravity
- 13. how far light travels in one year
- 15. size, brightness, color
- 18. medium sized, yellow star
- 20. warms Earth’s air, land, and water
Down
- 1. a path that planets revolve around the sun
- 2. smallest stars
- 3. stars appear as ______ of light the Earth
- 4. moves towards the energy source
- 5. how much light a star gives off
- 7. ball of hot burning gas
- 9. moves away from the energy source
- 10. a force that pulls objects towards each other and back to Earth
- 12. a push or a pull
- 14. energy from stars that travels through space in waves
- 16. a tool used to magnify far away objects
- 17. determined by the stars temperature
- 19. what pants use to make their own food