In this paper selected results obtained by the ALICE experiment at the LHC
will be presented. Data collected during the pp runs taken at sqrt(s)=0.9, 2.76
and 7 TeV and Pb-Pb runs at sqrt(s_NN)=2.76 TeV allowed interesting studies on
the properties of the hadronic and nuclear matter: proton runs gave us the
possibility to explore the ordinary matter at very high energy and up to very
low pt, while Pb-Pb runs provided spectacular events where several thousands of
particles produced in the interaction revealed how a very dense medium behaves,
providing a deeper picture on the quark gluon plasma(QGP) chemical composition
and dynamics.Comment: Proceeding of the Conference "New Trends in High Energy Physics",
Alushta, Crimea, Ukraine, September 3 - 10, 201