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Astronomy Quiz - Practice

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  • How old is the solar system?
    4.5 billion years
  • The earth revolves around the Sun in a ______ direction
    counter-clockwise
  • What is a light year?
    How a distance light travels in one year.
  • The Earth spins in a _____ direction.
    counter -clockwise.
  • What % of the mass of the Solar System is contained within the Sun?
    About 99.8% to 99.9%
  • This is why the Sun appears to rise in the ______ and sunsets are in the ____
    EAST. WEST.
  • which planet has the most days in a year?
    Neptune
  • Objects with more _____?_, have more gravity
    mass
  • a scientist who studies space and the universe is an _____
    astronomer
  • Rank the following from the smallest to biggest. (Galaxy, star, universe, moon, planet)
    Moon, Planet,Star, Galaxy, Universe
  • about how far across is the Milky Way?
    about 100,000 light years
  • which planet has a huge storm called the Great Red Spot?
    Jupiter
  • What imaginary line is located 23.5 degrees south of the Equator?
    TROPIC OF Capricorn
  • What causes sunrise and sunsets?
    when the earth spins where it rises from the east and sets in the west
  • what can stars do that planets cannot do?
    stars can produce their own light
  • This moon of Saturn has its own atmosphere
    Titan
  • While the Earth revolves around the Sun, it is also _______
    Spinning
  • The spinning on its axis is called _______
    rotation.
  • What holds and keeps the Solar System together?
    Gravity of the sun
  • which planet spins the fastest?
    Jupiter
  • what speed is closest to light speed?
    300,000 km/secs
  • What imaginary line is located 23.5 degrees north of the equator?
    Tropic of Cancer
  • What is the main cause for the seasons on Earth?
    The Earth's tilt
  • what season is it during December in the northern hemisphere?
    Winter
  • a light year is a measurement of _________
    distance
  • What is the sun mostly made of?
    Hydrogen and Helium
  • Approximately how many stars are in our galaxy?
    200 billion
  • how many planets are in the solar system?
    8
  • What is the name of the galaxy where we live?
    Milky Way
  • Which country is tropical? Canada. Japan. Argentina.Colombia
    Colombia
  • nuclear fusion is when ______
    the nuclei of atoms fuse together due to immense gravity
  • What is the name of the nearest star to the Sun?
    Proxima Centauri
  • It takes Earth ________ days to complete one revolution
    365 days
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