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

### Other People Are Reading

### Things you need

- Construction paper
- Compass
- Protractor
- Scissors
- Hot glue

Show More

## Instructions

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

- 4
Lay out 10 circles in a row. Each triangle should alternate direction (up, down, up, down).

- 5
Hot glue the triangles together at the adjacent edges to make a ring.

- 6
Lay five triangles together to make a circular shape. The tips should all be pointing together in the same place.

- 7
Hot glue the adjacent edges together.

- 8
Repeat Steps 6 and 7 to make one more circle of five triangles.

- 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
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.