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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
    "chromosomes"
    "membranes"
    "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
    Meningitis and rubella
    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?

    The graph above shows how each animal's internal temperature changes with the air temperature.
    Edexcel / Via qualifications.pearson.com

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

    20°C
    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
    homeotherms
    oviparous
    poikilotherms
    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
    Blood capillary
    Dermis
    Sebaceous gland
  6. 6. What completes this sentence?

    Kelly Oakes / BuzzFeed
    "circadian rhythms"
    "photoperiodism"
    "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
    Glucose is the only substance absorbed by villi.
    Three types of enzyme are absorbed by villi.
    The capillary network in the villi have a large surface area.
    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
    Water
    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
    Carbon dioxide
    Nitrogen
    Argon
    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
    "covalent"
    "ionic"
    "metallic"
    Correct!
    Wrong!

    In covalent bonds, atoms share electron pairs.

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

    NASA
    animals breathing
    global warming
    plants decaying
    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
    Should caffeine be an ingredient in drinks?
    Is there caffeine in a certain brand of drink?
    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
    Methanol
    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
    "...hydrogen is removed from the liquid oil."
    "...the liquid oil reacts with steam."
    "...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
    There are 440 sound waves produced per second.
    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
    It is a transverse wave travelling faster than an S-wave.
    It is a transverse wave travelling slower than an S-wave.
    It is a longitudinal wave travelling faster than an S-wave.
    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
    A light-dependent resistor.
    A light-emitting diode.
    Correct!
    Wrong!

    Also known as an LED.

  18. 18. Complete this sentence.

    Kelly Oakes / BuzzFeed
    "solid"
    "liquid"
    "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
    Its angle of incidence is greater than the critical angle.
    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
    Cornea and lens.
    Iris and lens.

Can You Get These High School Science Questions Right?

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