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.
Green Maile Ti Leaf Leis â Ti Leaf Leis symbolize admiration, appreciation and respect. Ti leaf leis are often used as gifts for weddings, graduations, anniversaries and memorials. Kukui Nuts Leis â The Kukui nut lei was once a symbol of royalty. These brown leis are given to show respect or appreciation.