NOTE: 1  Gasses react more rapidly with moist rather than dry litmus. 2  Gasses change the color of litmus paper over its entire exposed surface, not just at the edges because they make contact over the entire surface. 3  The neutral gasses nitrogen and oxygen do not affect the color of either red or blue litmus.
The tradition of giving leis to graduates has now spread to the mainland. Many graduation leis at stateside schools are designed to reflect school spirit by incorporating flowers, yarn, ribbons or other materials in the graduate's school colors.
Not only are orchids beautiful flowers and plants to give as gifts, they also are perfect to add to graduation leis! Learn how to make graduation leis in this step-by-step video by Julie Mulligan here! Carnations. Carnations are another type of flower that comes in many different colors, and they're also a very long-lasting flower! You can get carnations in any color to match the theme of your graduation party or to match the schools colors.