This pattern shows you how to make a model of a carbon atom, and it also explains a lot about the structure of the atoms, for those from a less scientific background.

You will need:
A 2.5mm crochet hook
dk yarn in blue, red, and light pink
white 4ply yarn
An embroidery hoop
craft wire (approx. 0.5mm in diameter)
Some PVA glue
A darning needle for sewing in loose ends
A pair of scissors