Thermometer with 2 scales. Old-fashioned design. "Fig 11: A well-made commercial thermometer" black and white re-trace from: GENERAL SCIENCE BY BERTHA M. CLARK, PH.D. (Gutenberg EBook 16593)
Kid Bucks are fun little rewards you can hand out to children in your classes, clubs, sunday schools, youth groups or at home - Have a fun time teaching kids the value of hard work or good behavior and how to save for purchases and reap the rewards. Just print 'em out and cut 'em out.