Across
- 7. One of the highly dense rocky planets nearest to the sun
- 8. Sun-centered model of the solar system
- 9. A small body that gives off gas and dust as it passes close to the sun
- 11. An explosive release of energy that comes from the sun and that is associated with magnetic disturbances on the sun's surface
- 14. The outer part of a shadow
- 15. A natural or artificial body that revolves around a planet
- 17. A collection of stars, dust, and gas bound together by gravity
- 19. The darkest part of a shadow
- 20. The time required for Earth to rotate once on its axis
- 21. A loop of relatively cool, incandescent gas that extends above the photosphere
- 25. A force of attraction between objects that is due to their masses and distance
- 28. A dark area of the photosphere of the sun that is cooler than the surrounding areas and that has a strong magnetic field
- 29. An event in which the shadow of one celestial body falls on another
- 30. The moment when the sunlight hits both hemispheres of the Earth equally
- 31. Growing smaller (Moon Phases)
- 32. The time required for Earth to revolve once around the sun
- 34. The brightness of a star as seen from Earth
Down
- 1. The spin of a body on its axis
- 2. Growing bigger (moon Phases)
- 3. The sun and all of the planets and other bodies that travel around it
- 4. The moment when the sunlight is at a maximum on one hemisphere and a minimum on another hemisphere
- 5. A large celestial body that is composed of gas and emits light
- 6. Space and all the matter and energy in it
- 10. A relatively small, rocky body that travels through space
- 12. The path that a body follows as it travels around another body in space
- 13. The different appearances of the moon from Earth throughout the month
- 16. Earth centered model of the solar system
- 18. A large irregular shaped rocky body that orbits the sun
- 22. A measure of how bright a star would be if it were seen from a standard distance
- 23. A celestial body that orbits the sun, is round because of its own gravity, but has not cleared its orbital path
- 24. The distance that light travels in one year
- 26. A planet that has a deep, massive atmosphere and is further from the sun
- 27. A bright streak of light that results when a meteoroid burns up in Earth's atmosphere
- 33. A meteoroid that reaches Earth's surface without burning up completely