***Secondary Colors
Yellow + Red = ORANGE
Red + Blue = VIOLET or PURPLE
Blue + Yellow = GREEN
****Tertiary Colors
Yellow + Orange = YELLOW-ORANGE
Red + Orange = RED-ORANGE
Red + Violet = RED-VIOLET
Blue + Violet = BLUE-VIOLET
Blue + Green = BLUE-GREEN
Yellow + Green = YELLOW-GREEN
The Global Learning and Observation to Benefit the Environment (GLOBE) program is a worldwide hands-on, primary and secondary school-based science and education program.
"The History of Science and Technology Collection brings together in digital facsimile two categories of primary and secondary publications: writings about scientific research at the University of Wisconsin-Madison and unique or valuable titles in science and technology held by the UW-Madison libraries. "