Happy Earth Day!

You can see these and many other e-cards in Kids.Yahoo
(I recommend it as a very interesting, useful and safe resource for children)
http://kids.yahoo.com/ecards/ecard/588/category/72

Take a look at my posts in the classroom blog:
http://englishclassroom18.blogspot.com/#!/2012/04/we-celebrate-earth-day.html
http://englishclassroom18.blogspot.com/#!/2012/03/about-going-green.html