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chapter 7
Term | Definition |
---|---|
geocentric | earth is at the center of the revolving plants and stars |
heliocentric | earth and the other planets revolve around the sun |
ellipse | is an oval shape |
solar system | is the sun and the planets the moons and a varity of other and smaller objects |
planet | must be round orbit the sun and have cleared out of the solar system |
dwarf planet | is an object that orbits the sun and has enough gravity it is not a planet |
core | the core is the middle of the earth and even as it's own boundary |
nuclear fusion | hydron atoms join to form huliem |
greenhouse effect | |
gas giant | a large planet of relative low destine consting predominantly of hydrogen and hulim |
ring | |
asteroid belt | |
comet | |
asteroid | |
meteoriod | |
meteor | |
meteorite |