A
____________________
is
an
explanation
based
on
a
huge
amount
of
experimental
evidence
.
A
____________________
is
NOT
an
explanation
,
but
a
statement
that
describes
a
scientific
phenomena
,
but
does
NOT
explain
why
it
happens
.
A
theory
____________________
become
a
law
.
They
have
mapped
out
the
ocean
floor
.
What
they
found
is
that
it
is
not
____________________
.
On
the
bottom
of
the
ocean
they
found
a
____________________
system
.
A
ridge
is
a
____________________
in
the
Earth
.
The
ridge
shape
is
not
a
____________________
.
The
ridge
shape
follows
the
____________________
.
Ridges
are
underwater
____________________
.
They
are
not
just
mountains
.
Ridges
release
____________________
when
they
erupt
.
The
ocean
floor
is
considered
to
be
geologically
____________________
.
The
continents
are
____________________
compared
to
the
ocean
floor
.
Ridges
are
pulled
apart
by
____________________
convection
currents
moving
in
the
____________________
direction
from
one
another
.
At
ridges
seafloor
is
____________________
.
The
____________________
you
travel
from
a
ridge
the
older
the
seafloor
becomes
.
This
is
because
seafloor
is
created
at
the
ridge
and
then
gets
pushed
out
like
a
____________________
by
the
convection
currents
underneath
the
lithosphere
.
This
process
is
known
as
____________________
.
In
the
Theory
of
Plate
Tectonics
the
Earth
is
____________________
.
These
sections
are
very
large
.
They
are
____________________
than
the
size
of
the
continents
.
These
sections
of
the
cracked
Earth's
lithosphere
are
called
____________________
.
These
cracked
sections
move
around
the
planet
.
The
spot
where
the
two
plates
meet
is
a
crack
in
the
Earth
.
Where
two
plates
meet
it
is
called
a
____________________
.
Two
plates
that
pull
away
from
one
another
are
called
____________________
boundaries
.
Two
plates
that
collide
are
called
____________________
boundaries
.
And
,
two
plates
that
slide
past
one
another
are
called
____________________
fault
boundaries
.
Ridges
occur
along
divergent
____________________
.
