After Easter holidays... tic time again!

After a few days of holiday, we have to work again.
That's the order of the activities you have to do today:

1. català:   http://clic.xtec.cat/db/act_ca.jsp?id=3736
2.  català:http://www.gencat.cat/economia/ur/ambits/recerca/programes_actuacions/divulgacio/ciencia_escoles/recerca_escoles/guies/index.html
3.  català: http://www.xtec.cat/~aalas/ocells/index.htm
4. english: http://www.edu365.cat/primaria/muds/angles/eduland/index.htm