WASHINGTON — Savvy gardeners know that they can adjust the color of hydrangea blossoms between pink and blue by altering the pH of the soil. But pH isn't the entire story. The chameleon-like nature of these flowers is a consequence of the plants' struggle to survive in toxic soils:
Hydrangeas, the strange color-changing flowers (VIDEO)
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American Chemical Society——Bio and Archives
American Chemical Society, ACS is a congressionally chartered independent membership organization which represents professionals at all degree levels and in all fields of chemistry and sciences that involve chemistry.