How to make a sphere out of paper

Written by stephanie ellen
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How to make a sphere out of paper
A football is a sphere. (Goodshoot/Goodshoot/Getty Images)

A sphere is a perfectly round object like a soccer or tennis ball. You can make paper spheres as a table decoration or as homemade Christmas ornaments to give as gifts. Varying sizes of paper spheres can also work well as part of a science project about the Platonic solids; this particular sphere is made up of twenty individual triangles and is sometimes called an icosahedron. You can make a paper sphere from any type of stiff paper or cardboard, but construction paper works best as it is easy to cut and fold.

Skill level:
Easy

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Things you need

  • Construction paper
  • Compass
  • Protractor
  • Scissors
  • Hot glue

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Instructions

  1. 1

    Draw an equilateral triangle with 5 cm (2 inch) sides on the construction paper with the compass. Use a protractor to ensure the angles are each 60 degrees.

  2. 2

    Place the pointed tip of the compass in the exact centre of the triangle. Place the pencil end of the compass at one of the triangle's corners. Draw a circle around the outside edge of the triangle, so that the triangle is circumscribed within the circle.

  3. 3

    Fold the circle's edges up around the triangle so that you have three flaps.

  4. 4

    Lay out 10 circles in a row. Each triangle should alternate direction (up, down, up, down).

  5. 5

    Hot glue the triangles together at the adjacent edges to make a ring.

  6. 6

    Lay five triangles together to make a circular shape. The tips should all be pointing together in the same place.

  7. 7

    Hot glue the adjacent edges together.

  8. 8

    Repeat Steps 6 and 7 to make one more circle of five triangles.

  9. 9

    Hot glue one circle on top of the ring of triangles to make the top of the sphere. The adjacent edges should be glued together.

  10. 10

    Repeat Step 9 for the bottom of the sphere.

Tips and warnings

  • Increase or decrease the size of your triangles to make larger or smaller spheres.
  • If you want to use your sphere as a decoration, make the pencil lines on the inside of the folds.

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