With this simple chromatography activity, you can see just what gives leaves their amazing fall colors. -From Red Ted Art’s ...

Whenever autumn arrives, whether in a blaze of brilliant leaves or with subtle changes in the life cycles of flora and fauna, the season holds a special beauty. Natural-science illustrations combine ...

Designed by USPS art director Antonio Alcalá ... “I am enchanted by the colors one finds in leaves, especially during the autumn season,” Alcalá said. “I wanted to present a gradation ...