When does the color change in leaves indicate a chemical change?

Answer 1

okay well acually the reason that the leafs change is because their are so many chemicals in that air that the leafs have an affect so than if the leafs cant riseist them somehow sometime they have to die like Savannah akaz GIRL FROM THE DEAD

Answer 2

Because of the seasons. Spring and summer have green leaves and fall has yellow, green, brown etc.. winter has no leaves unless you live on the other side of the world.

the reasons leaves change colors is because of the pigments in the plant cells. pigments called carotenoids (carotene) become the main source of photosynthesis and replace the chlorophyll or at least become more dominant. the carotenoids are usually yellow-orange-red color and the amounts vary depending on the genetics of the plant therefore giving the many different shades in the fall.

the changing of the leaves is signaled by the decreasing amount of daylight as summer turns into fall and fall into winter. its called the a decreasing photoperiod.

Answer 3

The chlorophyll breaks down, the green color disappears, and the yellow to orange colors become visible and give the leaves part of their fall splendor. At the same time other chemical changes may occur, which form additional colors through the development of red anthocyanin pigments.

Answer 4

Because the leaf is not burning.

Answer 5

physical change

Answer 6

Chemical