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Science
Astronomy 3.3 & 3.44
| Question | Answer |
|---|---|
| Which planet is the only planet that has a density less than that of water? | Saturn |
| Known for its unique set of rings | Saturn |
| What are Saturn's rings made of? | Chunks of ice and rock |
| What is unique about Saturn's largest moon, Titan? | It's larger than Mercury and has an atmosphere so thick that little light can pass through it |
| This planet has a blue-green color because of traces of methane found in its atmosphere | Uranus |
| What is unique about Uranus' rotation? | It has a 90 degree tilt and rotates from top to bottom |
| This planet is cold, blue , and similar to Uranus in size and color | Neptune |
| How was Neptune discovered? | As a result of a prediction from Uranus' orbit |
| Like Jupiter, Neptune has a | Great dark spot that was discovered in 1989 and used to be a storm |
| Neptune's largest moon, Triton is covered in | Nitrogen ice |
| Why do scientists not consider Pluto to be a planet? | It is not a gas giant, but has a rather solid surface that's much more dense than the outer planets |
| Galileo discovered Jupiter's four largest moons which are named | Io, Europa, Ganymede, and Callisto |
| Planet closest to the sun | Mercury |
| What is Jupiter's Great Red Spot? | A giant storm that is larger than Earth |
| What is unique about Jupiter's moon, Io? | It is covered with large, active volcanoes |
| How many moons does Jupiter have? | 79 |
| Pressure in Jupiter is... | 30 million times greater than Earth's |
| Astronomers think Jupiter has a dense core made of | Rock and iron at the center |
| The four inner planets are | Mercury, Venus, Earth, and Mars |
| What are the four inner planets called | Terrestrial planets |
| Terrestrial derives from the Latin word terra which means | Earth |
| The three layers of Earth are | Core, mantle, crust |
| What is Earth´s core made of | Very dense and mainly made out of iron and nickel |
| Earth is the only planet with | Liquid water |
| How much of the Earth's surface is covered by water? | About 70% |
| Only Earth has an atmosphere that is rich in what two elements? | Oxygen and nitrogen |
| The smallest terrestrial planet is | Mercury |
| Which planet has no moons, but many craters on its surface? | Mercury |
| Temperatures on Mercury have the greatest range because | It has no atmosphere |
| This planet is sometimes called Earth's twin because its size and mass are similar to Earth. | Venus |
| What is unique about Venus' rotation? | It rotates in the opposite direction (east to west) |
| Venus' clouds are made of | Sulfuric acid |
| Venus' thick atmosphere traps heat so well that it has the hottest surface than any other planet. This effect is called the | Greenhouse Effect |
| The surface of this planet has many volcanoes and broad plains formed by lava flow | Venus |
| Called the red planet due to its reddish tinge | Mars |
| Scientists think that there was once liquid water on the surface of | Mars |
| Mars has two moons called | Phobos and Deimos |
| This planet has a tilted axis like Earth which means it also has seasons | Mars |
| The four outer planets are | Jupiter, Saturn, Uranus, and Neptune |
| The four outer planets all are | Gas giants |
| Why are the four outer planets called gas giants? | Because they are so massive, they have stronger gravitational pulls so no gases from their atmosphere can escape |
| All gas giants are mostly made out of what two elements? | Hydrogen and Helium |
| Gas giants are surrounded by what two things | Moons and rings |
| The largest planet in our solar system is | Jupiter |
Created by:
Katherine0
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