The melodic minor scale is very interesting and has a raised sixth and seventh degree in the ascending form and a natural sixth and seventh (as in the natural minor) in the descending form.

Ascending

Whole Step – Half Step – Whole Step – Whole Step – Whole Step – Whole Step – Half Step

Descending

Whole Step – Whole Step – Half  Step – Whole Step – Whole Step – Half Step – Whole Step