These are chemical changes.
chemical
chemical because the chloroplast have had the chlorophyll die off
a chemical change
Drying of leaves is a physical change because neither it changes its composition nor does it have any different properties from the original one.
Burning (an oxidation reaction) is a chemical change,
a chemical change
chemical change
It is a chemical change.
chemical
chemical because the chloroplast have had the chlorophyll die off
No. Trees' leaves change colors beacuase when winter comes around, they will not have the energy to keep leaves, so they seal off the leaves from the rest of the tree. When the leaves are cut off from the rest of the tree, the chlorophyll in them dies, and turns brown.
Burning leaves would be a chemical change because once the leaves are burnt, you can't turn the ashes back into leaves.
Chemical Change.
The change is leaf color is a chemical change.
a chemical change
It is amazing to watch nature change seasons, so many different colors appear in each season. Leaves change colors in fall because many of the leaves are dying.
Chemical change.