Grade 9 Science Quiz

30 Questions | Total Attempts: 27133

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Grade 9 Science Quiz

Grade 9 Science Quiz; Are you a ninth-grader and have a hard time with your science classes? Worry no more, as the quiz below is perfect for helping you revise all that we have covered. Give it a shot and keep an eye out for more tests like this designed to help you pass the final exams. Do share the quiz with your friends.


Questions and Answers
  • 1. 
    When is an atom stable?
    • A. 

      When it has a full outer orbit.

    • B. 

      When it has the same amount of electrons as protons.

    • C. 

      When it has no neutrons.

    • D. 

      When it has an odd number of valence electrons.

  • 2. 
    An ion is formed when an atom loses/gains an electron.
    • A. 

      True

    • B. 

      False

  • 3. 
    A molecule is the same thing as an atom.
    • A. 

      True

    • B. 

      False

  • 4. 
    How many atoms are in Ca(NO3)2
    • A. 

      Ca-1 N-6 O-2

    • B. 

      Ca-1 N-2 O-6

    • C. 

      Ca-6 N-2 O-1

    • D. 

      Ca-2 N-1 O-6

  • 5. 
    Which does not indicate a chemical change has occurred:
    • A. 

      Change of color

    • B. 

      Heat is produced

    • C. 

      Smell is produced

    • D. 

      Light is produced

    • E. 

      Gas is produced

    • F. 

      Solid is produced

  • 6. 
    What is the equation for photosynthesis?
    • A. 

      H2O+oxygen (light+chlorophyll) = CO2+glucose

    • B. 

      H2O+CO2 (light+chlorophyll) = oxygen+glucose

    • C. 

      CO2+light (chlorophyll +water) = H2O+oxygen

  • 7. 
    Photosynthesis provides us with... (more than one answer)
    • A. 

      Energy

    • B. 

      Water

    • C. 

      Oxygen

    • D. 

      Glucose

    • E. 

      Light

  • 8. 
    Which of the following is not an interaction among ecosystems?
    • A. 

      Competition

    • B. 

      Mutualism

    • C. 

      Equilibrium

    • D. 

      Predation

  • 9. 
    Which of the following is not a limiting factor?
    • A. 

      Climate extremes

    • B. 

      Disease

    • C. 

      Predation

    • D. 

      Biodiversity

    • E. 

      Human disturbances

    • F. 

      Competition

  • 10. 
    _________ is a measure of how many species live in an ecosystem.
  • 11. 
    Bioamplification/biomagnification is when toxin levels get higher at each trophic level.
    • A. 

      True

    • B. 

      False

  • 12. 
    ____________ is when toxins build up in a single organism.
    • A. 

      Bioamplification

    • B. 

      Bioaccumulation

    • C. 

      Biomagnification

  • 13. 
    The order of the planets is Mars, Venus, Earth, Mercury, Saturn, Uranus, and Neptune.
    • A. 

      True

    • B. 

      False

  • 14. 
    The Milky Way is a bar-shaped galaxy.
    • A. 

      True

    • B. 

      False

  • 15. 
    A galaxy has more than ___________ stars.
  • 16. 
    A star is made of burning hydrogen and helium.
    • A. 

      True

    • B. 

      False

  • 17. 
    The Moon is not a satellite.
    • A. 

      True

    • B. 

      False

  • 18. 
    A circumpolar constellation can be seen ____________
    • A. 

      Once a year

    • B. 

      All year round

    • C. 

      Never

    • D. 

      Once in every 100 years

  • 19. 
    What are some circumpolar constellations? (more than one)
    • A. 

      Draco

    • B. 

      Aquarius

    • C. 

      Ursa major

    • D. 

      Little dipper

    • E. 

      Leo

  • 20. 
    The longest day of the year is ________
  • 21. 
    Static electricity only happens on conductors.
    • A. 

      True

    • B. 

      False

  • 22. 
    When an atom gains an electron, it becomes:
    • A. 

      Cation

    • B. 

      Anion

    • C. 

      Onion

  • 23. 
    In a circut, the electrons flow from _______ end to ________ end.
  • 24. 
    Why would you get a shock from an object?
    • A. 

      Electrons hate you

    • B. 

      Electrons want to discharge

    • C. 

      Protons jump to an opposite charged object

  • 25. 
    Which is not a method of discharging?
    • A. 

      At a point

    • B. 

      A spark

    • C. 

      Friction

    • D. 

      Moisture

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