Across
- 4. A small spherical grain embedded in a meteorite.
- 7. The breaking apart of a molecule by intense radiation
- 10. The solid remains of a meteor that falls to Earth.
- 11. A planet not orbiting our Sun
- 13. Greenhouse effect in which heat trapping grow temperature rises, so the planet's atmoshphere becomes extremely hot, as has occurred on venus.
- 15. A planet whose orbit lies in the outer part of theSolar System. Jupiter, Saturn, Uranus, and Neptune are outer planets.
- 16. A cloud of gas and dust in between the stars. Such clouds may be many light-years in diameter.
- 17. The sun, planets, their moons, and other bodies that orbit the sun.
- 18. A type of meteorite containing many tiny spheres (chondrules) of rocky or metallic material stuck together by carbon-rich material.
Down
- 1. A reddish colored region in Jupiter's atmosphere, larger than Earth. It appears to be a stable atmospheric vortex, having been seen since some of the earliest telescopic observations in the 1600s
- 2. Satellites that by their gravitational attraction prevent particles in a planet's rings from spreading out and dispersing. Saturn's F-ring is held together by shepherding satellites.
- 3. A rocky planet similar to Earth in size and structure, The terrestrial planets are Mercury, Venus, Earth and Mars.
- 5. A planet orbiting in the inner part of the Solar System. Sometimes taken to mean Mercury,Venus,Earth, and Mars.
- 6. The distance from an astronomical body at which its gravitational force can pull apart another astronomical body. A reddish colored region in Jupiter's atmosphere, larger than Earth. It appears to be a stable atmospheric vortex, having been seen since some of the earliest telescopic observations in the 1600s.
- 8. The bending of light from a distant object to forman image, usually strongly distorted by thegravitation of a mass between the distant object and the observer.
- 9. The velocity of a body along the line of sight. That is, the part of its motion directly toward or away from the observer.
- 10. The bright trail of light created by small solid particles entering Earth's atmosphere and burning up. A "shooting star".
- 12. A meteorite containing small spherical grains called chondrules
- 14. A white ban in a Jovian planet's atmosphere, encircling the planet. It appears that in these zones, gas is rising and cooling forming cloud particles.
- 19. A dark band in a Jovian planet's atmosphere, encircling the planet. Gas in the belts appears to be descending and warming.