Go to this
simulation and click on the play button to view the animation.
Play it forward and backward and observe the relationships between
the melting of the block of ice and the water level in the tank.
Then go to this simulation
and make similar observations.
The water tanks simulate the world oceans. In the
first example, the ice is floating in water. This would be
an example of icebergs or Arctic ice floating on the ocean. In the
second example the ice lies on a wood structure. The structure simulates
a continent. The block of ice on top of the structure simulates
ice grounded on top of a continent. This would be an example of
ice sheets in Greenland and Antarctica.