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Timothy ES Review 2
Moon and planets
Term | Definition |
---|---|
Mercury | No atmosphere, so both hot and cold, no moons, closest to the sun, terrestrial |
Venus | Very thick sulfur atmosphere, very hot, no moons, retrograde rotation, terrestrial, known as "Morning Star" or "Evening Star" |
Earth | Atmosphere, able to sustain life, 1 moon, terrestrial |
Mars | No atmosphere, red planet, surface is iron oxide, 2 moons: Phobos and Deimos, terrestrial, 1/2 the size of earth |
Jupiter | Jovian, known for the Great Red Spot, largest planet in the solar system, has over 60 moons, Largest 4 moons: Io, Callisto, Ganymede, Europa |
Saturn | Jovian, cold, known for colorful rings, has over 30 moons, largest moon is Titan, |
Uranus | Jovian, cold, pale blue color, "rolls" around the sun at a 90 degree angle instead of a slight tilt like the rest of the planets, over 20 moons, has a few, light rings |
Neptune | Jovian, cold, over 13 moons,largest moon is Triton, has the Great Dark Spot, |
Pluto | now considered a plutoid or dwarf planet because it is so small,very cold, terrestrial, 3 moon, large moon named Charon, frozen ball of methane, water, and rock |
centripetal force | force that causes something to move in a circle |
vortex | a spiraling mass of water or air |
satellite | something that orbits around another body, can be man-made or natural |
retrograde rotation | movement that is backwards or opposite that of earth |
terrestrial | "earth-like", planet of solid rock |
jovian | "jupiter-like", planet made of gas |