Science learners simulate what happens when ice breaks up and floats on water and how increased pressure on ice causes it to melt faster. They view a clip from the movie, The Day After Tomorrow, and relate their lab activities to what may happen on a global scale as water temperatures increase causing polar ice to break up and melt more quickly. Use this in your earth science class when covering the atmosphere or oceans, or in an environmental science course when instructing on how humans affect the environment.