What about the trees that don't change color?
There are two types of trees -- deciduous trees and evergreen trees.
Deciduous trees are the ones we've been talking about. They change their leaf colors and lose their leaves in the autumn to prepare for the winter.
Evergreen trees stay green all year long. Their leaves are tough, green "needles". The needles don't freeze in winter and they don't lose water as quickly as other kinds of leaves. By holding onto the water inside them, they stay alive and green -- even in the winter!
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