|
Results 1
-
2 of
|
= DLESE Reviewed Collection
|
|
This
teacher-directed
demonstration
provides
a
conceptual
understanding
of
latent
heat.
Using
the
example
of
a
chemical
hand
warmer,
students
learn
about
phase
changes
from
liquid
to
solid
and
from
solid
to
liquid
and
observe
that
one
of
these
phase
changes
releases
heat
while
the
other
requires
heat
to
be
added.
These
concepts
are
then
reinforced
in
a
demonstration
which
involves
heating
water
and
...
|
|
|
|
|
Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Related resources and collections
This resource is referenced by :
The Geological Society of America: Resources for K-12 Earth Science Educators -
http:/
This resource is included in the following collections:
|
||||||||||
|
In
this
demonstration,
the
teacher
will
use
a
potato
and
hydrogen
peroxide
to
generate
oxygen
in
a
closed
environment.
Students
can
then
observe
its
effects
on
a
burning
wooden
splint
and
on
burning
steel
wool.
They
will
understand
that
a
large
amount
of
energy
can
be
released
by
the
process
of
oxidation.
As
an
extension,
the
teacher
can
discuss
how
the
appearance
of
oxygen
(produced
by
cyanobacteria)
...
|
|
|
|
|
Choosing & Using this resource...
Educational standards associated with this resource:
Other: Read
Related resources and collections
This resource is included in the following collections:
|
||||
