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Science Quarter 2
| Question | Answer |
|---|---|
| what is a heliocentric system | Earth and the other planets revolve around the sun |
| beginning with the sun list the planets in order | sun, mercury, Venus, earth,mars, Jupiter, Saturn, Uranus, Pluto |
| why does Mercury, the smallest terrestrial planet , have the shortest year | Because it has the shortest orbit |
| why is Venus the earths twin described as having the green house effect | the carbon dioxide in Venus's atmosphere traps heat so well that Venus has the hottest surface of any planet |
| why is Venus called the evening star | because you can see it in the west just after sunset |
| describe two unusual features of Venus's rotation | it rotates from east to west and its day is longer than its year |
| which planet is called the red planet, has two moons, and Olympus mons, the largest volcano in the solar system | Mars |
| what do images taken from space show about mars | it is barren and covered in craters and liquid water was once present |
| which is the largest most massive planet with the Great red spot | Jupiter |
| Name the four moons of Jupiter | Europa, Callisto, Io, Ganymede |
| which planet has the most spectacular rings | Saturn |
| why does Uranus appear to be blue-green | because of traces of methane in the atmosphere |
| what is unusual about the rotation of Uranus | it rotates from top to bottom |
| how was the planet with the great red spot discovered | Uranus was discovered by mathematical prediction and since Uranus was not following its predicted path/ orbit |
| which planet is actually classified as a dwarf planet | Pluto |