Grade 9Sciencequiz16 questions

Stars and the universe

Grade 9: the Sun is a star, galaxies and the Milky Way, light years, life cycle of a star, gravity holds planets in orbit.

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Free to play. Teams answer on one screen; your phone is the remote. No student devices.

Questions

  1. What kind of object is the Sun?

    • A comet
    • A moon
    • A planet
    • A star
    Show answerA star

  2. The Sun appears much brighter than other stars because it is much closer to Earth. (True or false?)

    Show answerTrue

  3. Which process in the Sun's core releases its energy?

    • Burning coal
    • Chemical rusting
    • Nuclear fission
    • Nuclear fusion
    Show answerNuclear fusion

  4. What is a galaxy?

    • A cloud of gas inside our Solar System
    • A group of planets around one star
    • A huge group of stars, gas and dust held together by gravity
    • A single very large star
    Show answerA huge group of stars, gas and dust held together by gravity

  5. Which galaxy contains our Solar System?

    • Andromeda
    • The Milky Way
    • The Sombrero
    • The Whirlpool
    Show answerThe Milky Way

  6. Roughly how many stars are in the Milky Way? (Answer out loud)

    Show answerHundreds of billions

  7. What does a light year measure?

    • Brightness
    • Distance
    • Speed
    • Time
    Show answerDistance

  8. A light year is the distance light travels in one year. (True or false?)

    Show answerTrue

  9. A star is 8 light years away. What do we see when we look at it?

    • Light that left it 8 years ago
    • Light that left it 80 years ago
    • Light that will leave it in 8 years
    • The star as it is right now
    Show answerLight that left it 8 years ago

  10. Stars form from clouds of gas and dust called what?

    • Asteroids
    • Comets
    • Galaxies
    • Nebulae
    Show answerNebulae

  11. What will the Sun become after it stops being a main sequence star and swells up?

    • A black hole
    • A comet
    • A red giant
    • A supernova
    Show answerA red giant

  12. What is the huge explosion at the end of a massive star's life called? (Answer out loud)

    Show answerA supernova

  13. The Sun will turn into a black hole when it dies. (True or false?)

    Show answerFalse

  14. Which force keeps the planets in orbit around the Sun?

    • Air resistance
    • Friction
    • Gravity
    • Magnetism
    Show answerGravity

  15. What is the name for the curved path a planet takes around the Sun? (Answer out loud)

    Show answerAn orbit

  16. If a planet were moved farther from the Sun, the Sun's pull on it would be...

    • Stronger
    • The same
    • Weaker
    • Zero
    Show answerWeaker

Play it as a game

Paper RaceEvery right answer moves your car. The team in last place gets a double boost.Three in a RowAnswer right to place your team sticker on a 3×3 board. Three in a row scores +5 and starts a new round.Line of FourAnswer right to drop a disc in any column. Four of your discs in a line score +5.Team BingoEvery team has a bingo card of answers. Each answer is called after its question. Three in a row: BINGO +5.

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