quickly bed course meanders mouth source flow reservoirs tributary wider
1
.
A
is
a
river
that
flows
into
a
main
river
.
2
.
When
a
river
is
in
the
middle
of
its
journey
,
it
gets
and
slower
.
3
.
The
end
of
a
river
is
called
the
.
4
.
A
river
is
the
ground
that
a
river
flows
over
.
5
.
River
water
collects
in
and
lakes
.
6
.
The
place
where
a
river
begins
is
called
the
.
7
.
The
volume
of
water
in
a
river
is
called
the
.
8
.
In
the
middle
course
,
a
river
has
bends
called
.
9
.
The
of
a
river
is
the
journey
that
the
river
takes
.
10
.
In
the
upper
course
,
water
flows
.