Across
- 2. Mercury, Venus, Earth, Mars
- 7. The amount of matter in an object.
- 9. Sunlight that hits the earth at a 90 degree angle.
- 12. Caused by the tilt of Earth on its axis as it revolves around the Sun
- 13. An elongated circle, or oval shape.
- 14. A mixture of gases that surrounds a planet or moon.
- 16. the part of a shadow during an eclipse where the light is partially blocked
- 19. A natural satellite that revolves around a planet.
- 21. Sunlight that hits earth with less than a 90 degree angle.
- 22. A typical star that is the source of light and heat for the planets in the solar system.
- 26. Heat energy
- 28. the physical universe beyond the earth's atmosphere
- 29. the force of gravity on an object
Down
- 1. an object located in space and observed in Astronomy
- 3. The movement of an object around another object
- 4. Phases of the Moon when the Moon appears to be getting "bigger".
- 5. Energy released by the Sun which heats the Earth
- 6. Space and all the matter and energy in it
- 8. Any natural or artificial object that revolves around another object
- 10. A sun and all the planets that orbit around it.
- 11. The partial or total blocking of one object in space by another
- 15. the path that a body follows as it travels around another body in space
- 17. The spinning motion of a planet on its axis
- 18. The changing appearances of the Moon as seen from Earth due to the position of the Earth, Sun, and Moon.
- 20. Jupiter, Saturn, Uranus, Neptune
- 23. the darkest part of a shadow during an eclipse
- 24. Phases of the Moon when the Moon appears to be getting "smaller".
- 25. A force of attraction between objects that is due to their masses and distance apart.
- 27. 3rd planet from the sun