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Hosted by Type your name here Choice1 Choice 2 Choice 3 Choice 4 100 100 100 100 200 200 200 200 300 300 300 300 400 400 400 400 500 500 500 500 (Terrestrial Planets.) Planets Mercury, Venus, Earth, and Mars are called Row 1, Col 1 (gas planets) Planets Jupiter, Saturn, Uranus, and Neptune are called ____ 1,2 (Pluto) - Dwarf Planet -rocky surrounded by water ice -Surface has methane and nitrogen - 3+ 1 moons Charon, Nix, Hydra -Icy and Rocky -Crosses other planets path for 20 years --Rotation retrograde (East to west) -Located at beginning of Kuiper belt 1,3 (Planet) A massive object orbiting a star Like sun and has cleared neighborhood Around its orbit and has enough Mass to form spherical shape. 1,4 (Geocentric system) Ancient system for classifying that -Planets and moon orbit earth -Earth at the center of the planets. 2,1 (Heliocentric) •Copernicus system for classifying that : •Earth and the other planets orbit the sun •Sun is at the center of planet •Evidence: Moons of Jupiter •Phases of Venus 2,2 ( Rotation ) The spinning of Earth on its axis that causes day and night is called… 2,3 (Revolution) The movement of one object around another in an orbit that completes a year is called… 2,4 (Retrograde Rotation) Backward rotation of planets Venus,Uranus,and dwarf planet Pluto from East to West is called… 3,1 (Asteroids.) -Irregular Shaped, cratered -Orbit sun between Jupiter and Mars -Rotate erratically -Too small to be considered planet -Carbonaceous, Silicaneous Metallic 3,2 (Comet) -Long haired objects -Appear from beyond Neptune --Chunks of ice and dust -Size of mountain -Nucleus, coma, tail -Very long narrow ellipse 3,3 (Meteors) Origin from asteroids, Comets -Look like stones -Mostly Nickel and heavy for size -Shooting stars -Travel through space 3,4 (Mercury) -Rocky, craters -Almost no atmosphere (trace of Sodium) -Moves quickly -Extreme variation in temperature 4,1 (Venus) -Thick toxic atmosphere of CO2 With clouds of sulfuric acid -Rocky bright planet in evening sky -Closest to Earth in size, gravity, rock composition -Retrograde Rotation(backward) East to West -Greenhouse effect, -Active volcanoes 4,2 (Earth) -blue, solid, rocky -has life and water -has seasons because its axis is tilted at 23.5 degrees from vertical 4,3 (Mars) Two moons:Phobos, Deimos -Red rocky planet -Red dust windstorms -Seasons -Temperature below zero most times -Polar ice caps (Frozen water and CO2) -Volcanoes and canyons -Thin atmosphere mostly CO2 -Evidence of flowing water 4,4 (Jupiter) -Largest planet -Atmospheric pressure very high -Hydrogen, Helium, Methane, Ammonia -density only 1.3 g/cm3 -around 64 moons (Io, Europa) -Massive with colorful bands -Great Red spot: massive storm -Moon Europa may support life 5,1 (Saturn.) -Atmosphere mostly Hydrogen and Helium -around 60 moons (Titan) -Thousands of beautiful rings -Rings made of ice,rock -least dense planet -planetary storms -Titan its moon has nitrogen, and pressure like Earth (Hope for life) 5,2 (Uranus) -Atmosphere mostly Hydrogen, Helium, Trace of ammonia, water -About 27 moons (Oberon, Titania) -Axis 90 degrees off vertical -Retrograde Rotation (Top to bottom) -Ice giant -Magnetic field tipped over -Two sets of rings 5,3 (Neptune) -atmosphere contains visible clouds -13 moons (Triton) -Vivid brighter blue -Dark, cold, whipped by supersonic winds -Great dark spot (Storm) Six rings -located through math prediction -orbit nearly perfect circle -Orbit furthest for 20 years 5,4