  This paper is a review of a recently introduced cosmological model from a
noncompact Kaluza-Klein theory for a single scalar field minimally coupled to
gravity. We obtain that the 4D scalar potential has a geometrical origin and
assume different representations in different frames. It should be responsible
for the expansion of the universe. In this framework we explain the (neutral
scalar field governed) evolution of the universe from an initially inflationary
expansion that has a change of phase towards a decelerated expansion and
thereinafter evolves towards the present day observed accelerated
(quintessential) expansion. Finally, using the Hamilton-Jacobi formalism, we
study extra force and extra mass from this 5D cosmological model.
