The train station is in the middle of the city. A walk from the train station to the Sciences Faculty takes 20 minutes. There are also some taxis at the front door.
The bus station is far from the Science Faculty. There are buses from and to Madrid and Malaga almost every hour. Also, there are taxis at the front door.
Map of the city bus lines. Line 10 stops at "Camino de Ronda", a very long street, next to the Sciences Faculty. Line 3 and 33 stop at "Avenida de la Constitucion". The bus drivers cannot speak English at all.