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Ch 16 Vocabulary

6th Grade Science

QuestionAnswer
a description of the solar system in which all of the planets revolve around Earth geocentric system
process by which heat is trapped in the atmosphere by water vapor, carbon dioxide, methane, and other gases that form a "blanket" around the earth greenhouse effect
the name given to the first four outer planets: Jupiter, Saturn, Uranus, and Neptune gas giants
the region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found asteroid belt
objects revolving around the sun that are too small and too numerous to be considered planets asteroids
the middle layer of the sun's atmosphere chromosphere
a ball of ice and dust whose orbit is a long, narrow ellipse comet
the central part of the sun, where nuclear fusion occurs core
the outer layer of the sun's atmosphere corona
an elongated circle, or oval shape; the shape of the planets' orbits ellipse
the tendency of a moving object to continue in a straight line or a stationary object to remain in place inertia
a streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere meteor
a meteoroid that has hit Earth's surface meteorite
a chunk of rock or dust in space meteoroid
the spinning motion of a planet from east to west, opposite to the direction of rotation of most planets and moons retrograde rotation
the combining of two atomic nuclei to produce a single larger nucleus as when two hydrogen atoms join together to form helium, releasing energy nuclear fusion
a dark, cooler region on the surface of the sun sunspot
a loop of gas that protrudes from the sun's surface, linking parts of sunspot regions prominence
an explosion of hydrogen gas from the sun's surface that occurs when loops in sunspot regions suddenly connect solar flare
a stream of electrically charged particles produced by the sun's corona solar wind
the name given to the four inner planets: Mercury, Venus, Earth & Mars terrestrial planets
the spinning motion of a planet about its axis rotation
the movement of an object around another object revolution
a large planetary system that consists of a combination of many smaller planetary systems and objects solar system
Created by: Triana Silliman
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