photosynthesis
is the process plants use to make food. The food they make
is called
glucose
To make
plants need
They also need a chemical called
gives plants their
color. As autumn approaches
and days get shorter, plants get less
stops and
starts to disappear from the leaves. Now other colors also can be seen. The
red and purple colors are caused by
that was trapped in the leaves when
stopped. The
colors are caused by waste trapped in
the leaves. The
and
colors were always there; they
were just hidden by the
color of the
