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M6 Vocab
Astronomy
| Term | Definition |
|---|---|
| Planet | a celestial body moving in an elliptical orbit around a star that meets four criteria |
| Solar System | the collection of planets and their moons in orbit around a sun, together with smaller bodies such as asteroids, comets, and dwarf planets |
| Impact Craters | a round hole or dent in the ground made when a space rock, like a meteorite crashes into a planet, moon, or other surface at high speed. |
| Scarps | long, curved cliffs believed to have formed as the planet's crust compressed and shrank after most of its craters had already formed. |
| Dwarf Planet | a celestial body resembling a small planet but lacking certain criteria that are required for it to be classified as a planet |
| Giant Red Spot | a large long-lived oval feature, south of Jupiter's equator, that is an anticyclonic disturbance in the atmosphere |
| Greenhouse Effect | the trapping of the Sun's warmth in a planet's lower atmosphere due to gases in the atmosphere |
| Volcanism | the process where melted rock from inside a planet comes to the surface, usually through a volcano. |
| Equatorial Bulge | slight flattening at the top and bottom (poles) of a planet and the widening around the middle (equator) that happens because the planet spins, causing it to stretch out a bit at the equator. |
Created by:
aguy14