Free Poster On How Things Grow

The poster How A Tree Grows teaches about photosynthesis, enzymes, and the various parts of a tree. There is also a booklet that goes along with the poster that explains more about a tree’s growth. For more information, contact Forest Service, U.S. Department of Agriculture, 12th and Independence Aves., SW, P.O. Box 96090, Washington, DC 20090; 202-205-0957; {www.fs.fed.us}.

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