MET 110921 PRICKLE COOPER

Tribune-Star/Joseph C. Garza
Nature's recipe for trees: Sugar Grove Elementary third grader Jameson Cooper, center, wears a tree on his head as he represents green leaf chlorophyll as he listens to Professor Elwood Pricklethorn, a.k.a. Warren Hoselton, explain how nature builds trees with the ingredients represented by Cooper and his schoolmates on Tuesday at the school.

MET110921PRICKLECOOPER