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Only A-Level Science Students Will Be Able To Get 9/10 On This Test

Were you paying attention in class?

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  1. 1.

    What does the endocrine system do in the human body? 
    Correct
    Incorrect
    It's made up of glands that produce and secrete hormones.
    Correct
    Incorrect
    It's made up of nerve cells that transmit electrical signals around the body.
    Correct!
    Wrong!

    It secretes hormones.

    The endocrine system includes your pancreas, adrenal gland, and ovaries or testes.

  2. 2.

    How many particles does one mole of a substance contain?
    Correct
    Incorrect
    6.022 x 10^23
    Correct
    Incorrect
    6.023 x 10^22
    Correct!
    Wrong!

    6.022 x 10^23

    It's known as the Avogadro number.

  3. 3.

    What's the difference between a scalar and vector quantity?
    Correct
    Incorrect
    A vector only has magnitude, a scalar has magnitude and direction.
    Correct
    Incorrect
    A scalar only has magnitude, a vector has magnitude and direction.
    Correct!
    Wrong!

    A vector has both magnitude and direction.

    For example, speed is a scalar, but velocity is a vector.

  4. 4.

    Which of the following DOESN'T happen during eutrophication?
    Correct
    Incorrect
    Excess nutrients from fertilisers get into water and encourage plant growth.
    Correct
    Incorrect
    Algae blooms on the surface of the water.
    Correct
    Incorrect
    Sunlight can't get through the algae to underwater plants, so they die.
    Correct
    Incorrect
    There is excess oxygen in the water because of the decaying plants.
    Correct!
    Wrong!

    Eutrophication is when nutrients cause algal growth.

    The bloom blocks sunlight from getting to the underwater plants, so they die, and oxygen in the lake is depleted, eventually causing fish and other life to die.

  5. 5.

    Why is solid ice less dense than liquid water?
    Correct
    Incorrect
    Because hydrogen bonding means the molecules are arranged further apart as ice than when they are liquid.
    Correct
    Incorrect
    Because hydrogen bonding means the molecules are arranged closer together as ice than when they are liquid.
    Correct!
    Wrong!

    They're further apart.

  6. 6.

    Which of these is Kirchoff's first law?
    Correct
    Incorrect
    "In an electrical circuit, the total current that enters a junction is equal to the total current that leaves the junction."
    Correct
    Incorrect
    "In an electrical circuit, the current is directly proportional to the voltage and inversely proportional to the resistance."
    Correct!
    Wrong!

    Kirchoff's laws are about conservation in a circuit.

  7. 7.

    Which of these properties allows an enzyme to bind to a substrate?
    Correct
    Incorrect
    A substrate being the right pH
    Correct
    Incorrect
    Their complementary shapes
    Correct!
    Wrong!

    Complementary shapes

    In the lock and key model, the substrate and enzyme fit together.

  8. 8.

    Which of these hormones is a gonadotrophin?
    Correct
    Incorrect
    Testosterone
    Correct
    Incorrect
    Follicle-stimulating hormone (FSH)
    Correct!
    Wrong!

    Follicle-stimulating hormone (FSH)

    Gonadotrophin are a group of hormones secreted by the pituitary gland which stimulate the activity of the testes and ovaries.

  9. 9.

    Which group of elements is on the far right hand side of the periodic table?
    Correct
    Incorrect
    Alkali metals
    Correct
    Incorrect
    Noble gases
    Correct
    Incorrect
    Transition metals
    Correct!
    Wrong!

    Noble gases

    The last column of the periodic table contains the noble gases, including helium, neon, argon, etc.

  10. 10.

    Which of these is NOT a type of quark?
    Correct
    Incorrect
    Up
    Correct
    Incorrect
    Charm
    Correct
    Incorrect
    Bottom
    Correct
    Incorrect
    Weird
    Correct!
    Wrong!

    "Weird" is not a type of quark.

    There are six actual quarks in total: up, down, strange, charm, top and bottom.

Kelly Oakes is science editor for BuzzFeed and is based in London.

Contact Kelly Oakes at kelly.oakes@buzzfeed.com.

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