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lunes, 30 de julio de 2012

Interesting acidic foods

This video is very good for varaias reasons:
1 - serves to contextualize acids and bases in 4 th year of high school if the approach of the year is related to life
2 - general information and serves as the vocabulary used is quite understandable
I hope you like



http://www.youtube.com/watch?v=4TaKyYMciEw


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