Test Your Colophony Savvy- Which of these items contain colophony (rosin), or coniferin?

Colophony, or rosin, is a resin created from pines and other conifers. Created by vaporizing the terpene components of liquid resin, it is brittle at room temperature but turns to liquid at higher temperatures. It is widely utilized for its friction- producing qualities, as well as in soldering metals to aid flow. Prolonged exposure has been reported to cause cases of contact dermatitis. Test your knowledge of colophony here!