Solar System, chapters 8-11

2. a planet not orbiting our sun.
6. dissociation: the breaking apart of a molecule via intense radiation
8. a small spherical grain embedded in a meteorite.
10. Planet: A planet orbiting the outer part of the solar system. Said planets are Jupiter, Saturn, Uranus, and Neptune.
11. grains: microscopic solid dust particles in outer space.
13. cliffs formed where the crust has shifted that run for hundreds of kilometers across a planet’s or moon’s surface.
14. Nebula Theory: the theory that the solar system developed from a cloud of gas and dust, aka the solar nebula.
15. velocity: the velocity of a body along the line of sight.
16. the bright trail of light created by small solid particles entering Earth’s atmosphere and burning up. A “shooting star.”
17. limit: the distance from an astronomical body at which its gravitational force can pull apart another astronomical body.
20. a condition in which the repetitive motion of one body interacts with the repetitive motion of another so as to reinforce the motion.
21. System: A cosmic structure consisting of the sun and the planets that revolve around it
22. satellites: satellites that by their gravitational attractions prevent particles in a planet’s rings from spreading out and dispersing.
23. greenhouse effect: greenhouse effect in which heat trapping grows as temperature rises, so the planet’s atmosphere becomes extremely hot, as has occurred on Venus.

1. the solid remains of a meteor that fall to Earth.
3. Planet: an object that orbits the sun and is massive enough that its gravity compresses it into a spherical shape.
4. cloud: a cloud of dust and gas in between the stars.
5. Planet: A planet orbiting the inner part of the solar system. Said planets are Mercury, Venus, Earth, and Mars.
7. planet: a rocky planet similar to Earth in size and structure. These planets are Mercury, Venus, Earth, and Mars.
8. a meteorite containing small spherical grains called chondrules.
9. the passage of a celestial body such as a planet across the face of a larger body such as a star.
12. disk: a disk of gas and dust surrounding a young star out of which planetary systems form.
16. the technical name for the small, solid bodies moving within the Solar System
18. conversion of free gas atoms or molecules into a liquid or solid.
19. lensing: the bending of light from a distant object to form an image, usually distorted by the gravitation of a mass between a distant object and the observer.