Leaves are green from a chemical called "Chlorophyll".
Chlorophyll is a green pigment that helps the sun absorb energy.
Plants use that energy to make food. This process is called "Photosynthesis".
I also learned about two kinds of trees: coniferous and deciduous.
Coniferous trees are trees that have needles and cones , like a Christmas tree.
Deciduous trees are trees that have leaves, like a maple tree.
Q: Why do leaves change color from green to brown, red, and yellow?
A: In the fall, the chlorophyll disappears and the other pigments can be seen.