Spheres, cylinders and cones

  • Sponge Sections
    problem
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    Sponge Sections

    Age
    7 to 11
    Challenge level
    2 out of 3

    You have been given three shapes made out of sponge: a sphere, a cylinder and a cone. Your challenge is to find out how to cut them to make different shapes for printing.

  • Which solid?
    problem
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    Which Solid?

    Age
    7 to 16
    Challenge level
    1 out of 3
    This task develops spatial reasoning skills. By framing and asking questions a member of the team has to find out what mathematical object they have chosen.
  • Efficient cutting
    problem
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    Efficient Cutting

    Age
    11 to 14
    Challenge level
    3 out of 3

    Use a single sheet of A4 paper and make a cylinder having the greatest possible volume. The cylinder must be closed off by a circle at each end.

  • Cola can
    problem
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    Cola Can

    Age
    11 to 14
    Challenge level
    3 out of 3

    An aluminium can contains 330 ml of cola. If the can's diameter is 6 cm what is the can's height?

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    Immersion

    Age
    14 to 16
    Challenge level
    2 out of 3

    Various solids are lowered into a beaker of water. How does the water level rise in each case?

  • Fill Me Up Too
    problem
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    Fill Me Up Too

    Age
    14 to 16
    Challenge level
    2 out of 3

    In Fill Me Up we invited you to sketch graphs as vessels are filled with water. Can you work out the equations of the graphs?

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    Funnel

    Age
    14 to 16
    Challenge level
    3 out of 3

    A plastic funnel is used to pour liquids through narrow apertures. What shape funnel would use the least amount of plastic to manufacture for any specific volume ?

  • Mesh
    problem

    Mesh

    Age
    16 to 18
    Challenge level
    1 out of 3
    A spherical balloon lies inside a wire frame. How much do you need to deflate it to remove it from the frame if it remains a sphere?
  • There and back again
    problem

    There and Back Again

    Age
    11 to 14
    Challenge level
    1 out of 3
    Bilbo goes on an adventure, before arriving back home. Using the information given about his journey, can you work out where Bilbo lives?
  • Air Routes
    problem

    Air Routes

    Age
    16 to 18
    Challenge level
    2 out of 3
    Find the distance of the shortest air route at an altitude of 6000 metres between London and Cape Town given the latitudes and longitudes. A simple application of scalar products of vectors.