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Inner/Outer Planets
Science - Inner and Outer Planets Section 3 and 4
| Question | Answer |
|---|---|
| Planets with rings | Jupiter, Saturn, Uranus, Neptune |
| Would float on water | Saturn (Only planet with average density less than water) |
| Double planet | Pluto (One of its three moons (Charon) is more than half the size of the planet) |
| Smallest planet | Pluto |
| Largest moon | Ganymede (larger than pluto!) |
| "Blue Planet" | Neptune (Neptune is bright blue, but Uranus is also bluish, so is earth because of water) |
| Retrograde revolution | Triton (Only moon that has retrograde orbit (i.e., it orbits in a direction opposite to the planet's rotation) |
| Great Dark Spot | On Neptune (Thought to be a large storm about the size of earth, photographed in 1989. Disappeared within 5 years.) |
| God of the Underworld | Pluto |
| Nitrogen Atmosphere | Earth. Titan also has nitrogen. (Earth is 78% nitrogen and 21% oxygen. Titan is 96.5% nitrogen, 3.5% methane) |
| "Lazy Planet" | Uranus (Called "lazy" because it rotates on it's side, i.e., its axis of rotation is pointed toward the sun.) |
| 15 million degrees celsius temperature | The sun's core |
| Hottest planet | Venus, 460º C (Thick carbon dioxide atmosphere creates runaway greenhouse effect, trapping energy from sun) |
| Eccentric orbit | Pluto. (Eccentric orbit is one that is elliptical, not circular. Pluto's orbit is also inclined.) |
| One moon | Earth. (Only planet with one moon) |
| God of Terror | Deimos (1 of 2 Martian moons) |
| No Moons | Mercury, Venus. |
| Most active geologically | Io (One of Jupiters moons) |
| Water planet | Earth (70% of surface) |
| Most dense planet | Earth is the densest planet. It has a density of 5.51 grams per cubic centimeter, Mercury is second at 5.427 grams. |
| Fastest rotating planet | Jupiter (9.84 hours) |
| Slowest rotating planet | Venus (243 days) |
| Largest volcano | Mars (Olympus Mons, 14 miles tall, about 74,000 ft) |
| Great Red Spot | On Jupiter (A storm active since before the 1600's, larger than earth) |
| "Ringed planet" | Saturn |
| Nitrogen surface | Triton (surface mostly frozen nitrogen) |
| Methane gas atmosphere | Titan (Titan's atmosphere more dense than earth composed of nitrogen and methane. Only moon with an atmosphere) Uranus and Neptune have trace amounts of methane. |
| Electroglow | Uranus (layer of haze detected around the sunlit pole, found to radiate large amounts of ultraviolet light) |
| All your atoms originated | From star dust |
| Deepest canyons | Mars (Valles Marineris is more than 4,000 km long, 200 km wide and up to 7 km deep) |
| CO2 atmosphere | Venus and Mars (Venus' atmosphere is extremely dense and 96% CO2. Mars' atmosphere is extremely thin and is 95% CO2) |
| Sulfuric acid rain | Venus. It's clouds are mostly made of sulfuric acid. |
| Iron Oxide surface | Mars. |
| Rocky surface | All inner planets: Mercury, Venus, Earth, and Mars. Pluto has a solid surface, probably a mixture of rock and ice. |
| Gas Planets | Jupiter, Saturn, Uranus, and Neptune |
| 149 million km is: | Distance from earth to sun |
| Discovered in 1609 | Galileo discovered the four "Galilean" moons of Jupiter. Io, Europa, Callisto, Ganymede. |
| Failed star | Jupiter. It would need to be about 75 times as massive to fuse its hydrogen and become a star. |
| Permafrost ice caps | Mars |
| Emits radio waves | Jupiter, Saturn |
| Four characteristics of living things | They are made up of one or more cells. They take in energy an use it to grow and develop. They reproduce, producing living things of the same type. They give off waste. |
| Four parts of a comet | Nucleus, Coma, Dust Tail and Gas Tail. (Comet's Head is made up of the coma and nucleus, comet's tail is composed of a dust tail and gas tail) |
| Goldilocks Region | Distance from a sun which is neither too hot or too cold for living things to survive. |
| "Long haired star" | Comet |
| "Shooting Star" | Meteor |
| Doughnut shaped region beyond neptune | Kuiper Belt (A region that of small bodies, remnants of the formation of the solar system) |
| Spherical region of comets that surrounds the solar system | The Oort Cloud |
| Fuzzy layer of dust and gas around the comets nucleus | Coma |
| Meteor that hit the ground | Meteorite |
| Meteor before reaching the atmosphere | Meteoroid |
| Meteroid that enters the atmosphere | Meteor |
Created by:
charcharzzz
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