2. General info Revolve: “to move in a circular or curving course or orbit “-http://dictionary.reference.com/browse/revolve Rotate: “to cause to turn around an axis or center point”- http://dictionary.reference.com/browse/rotate There are total of eight planets found in our solar system Inner planets: Mercury, Venus, Earth, Mars Outer planets: Jupiter, Saturn, Uranus, Neptune Inner planets are made out of solid materials but outer planets are made out of gas and there’s a asteroid belt separating them You’ll be able to see craters on the inner planets because they’re made of rocks and they’re inside the asteroid belt. However, the outer planets are made of gas and won’t leave a mark Orbit: “the curved path, usually elliptical, described by a planet,satellite, spaceship, etc., around a celestial body, as the sun.”-http://dictionary.reference.com/browse/orbit To be defined as a planet, it’ll have to revolve around a sun, form the sphere shape because of the gravity, and it has to create its own orbit Dwarf planets are those planets that are too small to be qualified to be a planet and doesn’t have a clear orbit around the sun The 3 dwarf planets are : Pluto, Ceres, and Eris
3. Mercury Mercury does not have an atmosphere around itself, which means there are no elements around it. Mercury’s surface was shaped by impact cratering, which is when objects from space hits it’s surface. Volcanism, where the lava flooded the surface of Mercury Finally, the tectonic plates
4. Venus The reason why it’s called the evening star is because it can be seen most clearly on Earth You can find Co2 and sulfuric acid in the atmosphere “retrograde” is when Venus is rotating clockwise unlike all the other 7 planets The rotation takes 243 days and the revolution takes 225 days If u were on Venus, then the sun would rise form the west and it would set in the east because it rotates clockwise Venus is also known as the hottest planet in our solar system because the thick atmosphere traps all the heat from the sun and doesn’t let it out
5. Earth Our atmosphere is composed of O2, nitrogen, argon, and water vapor,CO2neon, methane, krypton, helium, xenon, hydrogen, nitrous oxide, carbon monoxide, nitrogen dioxide, sulfur dioxide, and ozone The rotational tilt of the earth is 23.5 degrees The boiling core creates the magnetic field around Earth The only satellite of the Earth is our moon
6. Mars Some particles of meteorites on earth are from mars and ancient bacteria might have existed on mars The primary element in the Mars’s atmosphere is carbon dioxide The surface of mars appears to be red because it’s rich in iron The Olympic moons is the largest volcano in the solar system Mars have 2 satellites called Phobos and Deimos
7. Jupiter The speed of it’s rotation make the poles flat and the a bit bulgy on the equator The Atmosphere of Jupiter is made of hydrogen, helium, sulfur, and nitrogen. The great red spot is a gigantic hurricane storm So far, Jupiter has about 50 satellites IO is special because it is still volcanically active
8. Saturn The atmosphere is made of helium and hydrogen Some say the rings were formed by the break down of its satellites The rings are composed of dustand ice. Saturn has the lowest density out of all the planets so it can float on water
9. Uranus Uranus has a special rotational axis because it’s tilted 98 degrees Its atmosphere is composed of helium, hydrogen, and, methane It has about 27 known satellites
10. Neptune The atmosphere is composed of ammonia, helium, and methane So far, it is known to have 13 satellites Triton is the largest satellite of Neptune, however due to it's retrograde rotation and it’s density and composition, many believe it wasn’t a natural satellite of Neptune
11. Pluto Pluto has three natural satellites called Charon, Hydra, and Nix Through the spectroscope, scientists have learned that Pluto has methane frost and water frost on Charon. Charon is more blue in color than Pluto because it’s atmosphere condenses and falls on its surface when Pluto is farthest from the sun
12. Ceres It takes about 4.6 years for Ceres to fully revolve around our sun It used to be mistaken as an asteroid because it was revolving the sun in the asteroid belt On its surface, there would be water ice, clay, and, carbonates
13. Eris It used to be called Xena before it was properly named It takes Eris approximately 557 years to finish a single revolution around the sun It has one moon named Dysnomia Eris is not defined as a planet because it doesn’t have a clear orbit
