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Can You Get These High School Science Questions Right?

Were you paying attention in class? All questions taken from AQA and Edexcel GCSE past papers.

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  1. 1. What word completes this sentence?

    Kelly Oakes / BuzzFeed
    Correct
    Incorrect
    "chromosomes"
    Correct
    Incorrect
    "membranes"
    Correct
    Incorrect
    "receptors"
    Correct!
    Wrong!

    Chromosomes are made from DNA, and genes are short sections of DNA.

  2. 2. The MMR vaccine protects against measles. What two other diseases does it protect against?

    Thinkstock
    Correct
    Incorrect
    Meningitis and rubella
    Correct
    Incorrect
    Mumps and rubella
    Correct!
    Wrong!

    M = measles M = mumps R = rubella (also known as german measles)

  3. 3. What is the change in internal body temperature of the snake between an air temperature of 10°C and 30°C?

    Edexcel / Via qualifications.pearson.com

    The graph above shows how each animal's internal temperature changes with the air temperature.

    Correct
    Incorrect
    20°C
    Correct
    Incorrect
    30°C
    Correct!
    Wrong!

    At 10°C air temperature, the snake's internal temperature is 10°C. At 30°C air temperature, it has increased to 30°C. (In the exam, 19°C was also accepted as a correct answer)

  4. 4. Animals that keep their internal body temperature within a narrow range, like the bobcat, are called what?

    Thinkstock
    Correct
    Incorrect
    homeotherms
    Correct
    Incorrect
    oviparous
    Correct
    Incorrect
    poikilotherms
    Correct
    Incorrect
    viviparous
    Correct!
    Wrong!

    It comes from the Greek words for "like" (homoios) and "heat" (thermē).

  5. 5. What structure is marked X?

    Edexcel / Via qualifications.pearson.com
    Correct
    Incorrect
    Blood capillary
    Correct
    Incorrect
    Dermis
    Correct
    Incorrect
    Sebaceous gland
  6. 6. What completes this sentence?

    Kelly Oakes / BuzzFeed
    Correct
    Incorrect
    "circadian rhythms"
    Correct
    Incorrect
    "photoperiodism"
    Correct
    Incorrect
    "phototropism"
    Correct!
    Wrong!

    The word photoperiodism is a combination of the Greek words for light and duration of time.

  7. 7. Villi are structures in the small intestine. Which statement about villi is true?

    Thinkstock
    Correct
    Incorrect
    Glucose is the only substance absorbed by villi.
    Correct
    Incorrect
    Three types of enzyme are absorbed by villi.
    Correct
    Incorrect
    The capillary network in the villi have a large surface area.
    Correct
    Incorrect
    The walls of the villi are thicker to absorb more food.
    Correct!
    Wrong!

    The villi have a large surface area and thin walls to absorb digested food molecules.

  8. 8. Complete the reaction.

    Kelly Oakes / BuzzFeed
    Correct
    Incorrect
    Water
    Correct
    Incorrect
    Hydrogen peroxide
    Correct!
    Wrong!

    The only product formed during the oxidisation of hydrogen is water – this is why it's seen as a climate-friendly alternative to fossil fuels.

  9. 9. Which of these is a noble gas?

    Thinkstock
    Correct
    Incorrect
    Carbon dioxide
    Correct
    Incorrect
    Nitrogen
    Correct
    Incorrect
    Argon
    Correct
    Incorrect
    Oxygen
    Correct!
    Wrong!

    The noble gases are in Group 0 on the periodic table. The others are neon, krypton, xenon, and radon.

  10. 10. Which word completes this sentence?

    Kelly Oakes / BuzzFeed
    Correct
    Incorrect
    "covalent"
    Correct
    Incorrect
    "ionic"
    Correct
    Incorrect
    "metallic"
    Correct!
    Wrong!

    In covalent bonds, atoms share electron pairs.

  11. 11. What was Earth's earliest atmosphere formed by?

    NASA
    Correct
    Incorrect
    animals breathing
    Correct
    Incorrect
    global warming
    Correct
    Incorrect
    plants decaying
    Correct
    Incorrect
    volcanic activity
    Correct!
    Wrong!

    We think there was lots of volcanic activity for the first billion years of Earth's existence.

  12. 12. Which of these questions can be answered by science alone?

    Thinkstock
    Correct
    Incorrect
    Should caffeine be an ingredient in drinks?
    Correct
    Incorrect
    Is there caffeine in a certain brand of drink?
    Correct
    Incorrect
    How much caffeine should people drink?
    Correct!
    Wrong!

    Caffeine can have different effects on people, and how much we should drink is a matter of opinion, not science.

  13. 13. What is the name of this alcohol?

    AQA / Via filestore.aqa.org.uk
    Correct
    Incorrect
    Methanol
    Correct
    Incorrect
    Ethanol
    Correct!
    Wrong!

    Also known as ethyl alcohol.

  14. 14. Margarine is made by hydrogenation of a liquid oil. Which of these statements is true?

    Kelly Oakes / BuzzFeed
    Correct
    Incorrect
    "...hydrogen is removed from the liquid oil."
    Correct
    Incorrect
    "...the liquid oil reacts with steam."
    Correct
    Incorrect
    "...the liquid oil is changed into a solid."
    Correct!
    Wrong!

    That's why margarine is solid at room temperature.

  15. 15. If a musical note has a frequency of 440 Hz, what does that mean?

    Thinkstock
    Correct
    Incorrect
    There are 440 sound waves produced per second.
    Correct
    Incorrect
    There is one sound wave produced every 440 milliseconds.
    Correct!
    Wrong!

    Bonus fact: In SI units, Hertz (Hz) is just s-1.

  16. 16. Which of the following is correct for a P-wave?

    Thinkstock
    Correct
    Incorrect
    It is a transverse wave travelling faster than an S-wave.
    Correct
    Incorrect
    It is a transverse wave travelling slower than an S-wave.
    Correct
    Incorrect
    It is a longitudinal wave travelling faster than an S-wave.
    Correct
    Incorrect
    It is a longitudinal wave travelling slower than an S-wave.
    Correct!
    Wrong!

    P waves are longitudinal (which basically means they go back and forth, rather than up and down) and faster than S-waves.

  17. 17. What does this circuit symbol represent?

    AQA / Via filestore.aqa.org.uk
    Correct
    Incorrect
    A light-dependent resistor.
    Correct
    Incorrect
    A light-emitting diode.
    Correct!
    Wrong!

    Also known as an LED.

  18. 18. Complete this sentence.

    Kelly Oakes / BuzzFeed
    Correct
    Incorrect
    "solid"
    Correct
    Incorrect
    "liquid"
    Correct
    Incorrect
    "gas"
    Correct!
    Wrong!

    Heat transfer by convection requires mass to move around.

  19. 19. Why does laser light stay inside this optical fibre?

    AQA / Via filestore.aqa.org.uk
    Correct
    Incorrect
    Its angle of incidence is greater than the critical angle.
    Correct
    Incorrect
    Its angle of incidence is less than the critical angle.
    Correct!
    Wrong!

    This is known as total internal reflection.

  20. 20. Which parts of the eye focus light?

    Thinkstock
    Correct
    Incorrect
    Cornea and lens.
    Correct
    Incorrect
    Iris and lens.
 
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