Solar System, chapters 8-11

3. : a meteorite containing small spherical grains called chondrules.
5. dust : microscopic solid dust particles in outer space.
7. : a small spherical grain embedded in a meteorite.
9. resonance : a condition in which the repetitive motion of one body interacts with the repetitive motion of another so as to reinforce the motion.
12. : the technical name for the small, solid bodies moving within the Solar System.
13. disk : a disk of gas and dust surrounding a young star out of which planetary systems form.
15. cloud : cloud: a cloud of dust and gas in between the stars.
16. : the solid remains of a meteor that fall to Earth.
17. : cliffs formed where the crust has shifted that run for hundreds of kilometers across a planet’s or moon’s surface.
19. satellites : satellites that by their gravitational attractions prevent particles in a planet’s rings from spreading out and dispersing.
20. : an object made of dust and ice that orbits the sun.
22. planet : a rocky planet similar to Earth in size and structure. These planets are Mercury, Venus, Earth, and Mars.
23. : the passage of a celestial body such as a planet across the face of a larger body such as a star.
24. 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. System : a cosmic structure in space consisting of the Sun and the planets that orbit around it.
2. microlensing : 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.
4. limit : the distance from an astronomical body at which its gravitational force can pull apart another astronomical body.
6. Planet : A planet orbiting the inner part of the solar system. Said planets are Mercury, Venus, Earth, and Mars.
8. velocity : the velocity of a body along the line of sight.
9. Planet : A planet orbiting the outer part of the solar system. Said planets are Jupiter, Saturn, Uranus, and Neptune.
10. : an object that orbits the sun and is massive enough that its gravity compresses it into a spherical shape.
11. : the bright trail of light created by small solid particles entering Earth’s atmosphere and burning up. A “shooting star.”
13. dissociation : the breaking apart of a molecule via intense radiation.
14. Theory : the theory that the solar system formed from a cloud of gas and dust.
18. : conversion of free gas atoms or molecules into a liquid or solid.
21. : a planet not orbiting our sun.