Earth Day (Holiday Histories) But do you know why? It's Earth Day! Turn the pages of this book to find out what causes air pollution, how a river caught fire in 1969, and what you can do to help Earth everyday.It is April 22 and your class it outside cleaning the park.
Showing posts with label Earth. Show all posts
Showing posts with label Earth. Show all posts
Tuesday, May 17, 2016
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