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# SCIENCE TRIVIA

##### on Astronomy

Spark discussion and debate before revealing the answers to our Trivia questions.

# Science Trivia on Astronomy

##### Astronomy Trivia
###### This trivia has been setup for use in your classroom ... can your students get them all?

 1) What survives impacting Earth's surface; a meteor, a meteorite or an asteroid?    Meteorite. 2) Which is the hottest planet in the solar system?    Venus, surface temperature 460oC 3) What is the strongest known magnet in the Universe?    A Neutron Star 4) If you go into space, do you get taller?    Yes, the cartilage disks in your spine expand under zero gravity. 5) How far is the moon away from Earth?    Around 376 600 km away. 6) How old is our Sun?    Roughly 5 billion years 7) What is the name given to planets outside our solar system?    Extrasolar planets 8) Which planets have rings around them?     Saturn, Jupiter, Uranus &  Neptune. 9) Where is the largest known meteorite crater on Earth?    Vredefort Ring in South Africa, 299km diameter! There is conjecture around the Chicxulub crater in Mexico being potentially bigger though. 10) What causes an Aurora?​​​​​​​    Charged particles from solar wind. 11) Which of Saturn's moons has seas of Methane?​​​​​​​    Titan 12) Which equation describes the likelihood of extraterrestrial life?​​​​​​​    The Drake equation, named after Frank Drake. N = R* • fp • ne • fl • fi • fc • L Whereby N = The number of civilizations in the Milky Way Galaxy whose electromagnetic emissions are detectable. R* = The rate of formation of stars suitable for the development of intelligent life. fp = The fraction of those stars with planetary systems. ne = The number of planets, per solar system, with an environment suitable for life. fl = The fraction of suitable planets on which life actually appears. fi = The fraction of life bearing planets on which intelligent life emerges. fc = The fraction of civilizations that develop a technology that releases detectable signs of their existence into space. L = The length of time such civilizations release detectable signals into space.​​​​​ 13) Does the Sun move?​​​​​​​    Yes! The entire solar system is orbiting the center of our galaxy plus the Sun itself rotates. 14) What would happen if you 'fell' into a black hole?​​​​​​​    A term 'spaghettification' has been used here! The closer you are to a black hole, the fast you accelerate towards it. Basically your feet would be pulled faster toward the black hole than your head which means you would stretch and stretch until shredded (!). 15) How long does a day on Mercury last?​​​​​​​    59 Earth days 16) Who first proposed that the Sun was the center of the solar system?​​​​​​​    Nicolaus Copernicus (1473 - 1543) 17) How much rock was brought back to Earth by the Apollo missions?​​​​​​​    380kg 18) What was the biggest asteroid hit ever witnessed?​​​​​​​    The crash of Shoemaker-Levy 9 sasteroid into Jupiter in 1994. 19) When was the first liquid-fuel rocket launched?​​​​​​​    1926 by Robert Goddard.​​​​​​​ 20) Where is the largest volcano in the solar system?​​​​​​​    Olympus Mons is the largest volcano in the solar system. Found on Mars, it is 3 times higher than Mt Everest. It can be this big due to lower gravity on Mars as well as the lack of plate tectonics. 21) Which is largest moon in the solar system?​​​​​​​    Ganymede which orbits Jupiter. 22) When was the first space station launched?​​​​​​​    ​​​​​​​In April 1971 the Salyut 1 by the former Soviet Union.

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