WEB DEL CENTRE
Fa 3 anys
http://www.juntadeandalucia.es/averroes/recursos_informaticos/andared02/maquinas/principal.swf
http://www.slideshare.net/crc2002/las-mquinas-2862708
http://clic.xtec.cat/db/jclicApplet.jsp?project=http://clic.xtec.cat/projects/medinat4/jclic/invents4/invents4.jclic.zip&lang=ca&title=Coneixement%2Bdel%2Bmedi%2Bnatural%2B4t%2Bde%2Bprim%C3%A0ria