Trabajos sobre contaminación

En esta entrada les dejo los links de descarga correpondientes a las carpetas didácticas de 3º "B" y 3º "C".

Tercero "B":
http://www.megaupload.com/?d=308MZL2A, http://www.megaupload.com/?d=CK1IMB9W, http://www.megaupload.com/?d=UX7LFHZF, http://www.megaupload.com/?d=YZOKQGJX, http://www.megaupload.com/?d=UFDGYT98, http://www.megaupload.com/?d=3BFHP1AW

Tercero "C":
http://www.megaupload.com/?d=308MZL2A, http://www.megaupload.com/?d=VHSYZ3MB, http://www.megaupload.com/?d=8YPKNLP3, http://www.megaupload.com/?d=QYRSFJAC, http://www.megaupload.com/?d=3BFHP1AW, http://www.megaupload.com/?d=1O8VXSF0