Posted by: tpsciencefun | September 23, 2013

Why Do Leaves Change Color in the Fall?

From about.com/chemistry

Question: Why Do Leaves Change Color in the Fall?
Answer: When leaves appear green, it is because they contain an abundance of chlorophyll. There is so much chlorophyll in an active leaf that the green masks other pigment colors. Light regulates chlorophyll production, so as autumn days grow shorter, less chlorophyll is produced. The decomposition rate of chlorophyll remains constant, so the green color starts to fade from leaves.
To learn even more click this link to about.com for all sorts of information.
Fun factoid: We travel about 1 billion kilometers as we experience the four seasons and orbit the sun one time.
Advertisements

Categories

%d bloggers like this: