Icy hot patch or icy hot experiment

In Chemistry we did a lab called the " Icy Hot Lab". This lab was all about seeing the temperature of water as it changed from a solid from a liquid then a liquid to a gas. For this lab you need a Burner, matches, a breaker, ice, a computer, and a temperature probe. First you'll need to crush the ice and place the ice in to beaker. After place the temperature probe into the ice and plug the probe up to the computer so it can record the temperature on a chart as the time goes by. The most important thing about this lab is that you don't leave your station because sometimes the computer will stop recording, so you have to be there to restart and restore the graph so you don't lose any critical information. Before  we conducted the experiment the class hypothesized that the relationship wouldn't be direct but it would have an upward slope.

But the graph actually had plateaus and upward slopes.

The low temperature plateau was when the ice was changing to water,melting from a liquid to a solid, and had Eph- phase energy; arrangement of particles. The region of temperature change was when the water was stuck in the liquid phase and had Eth- thermal energy; particle motion. The high temperature plateau was when the water was evaporating from a liquid to a gas and had Eph. The last upward slope was when the water was completely evaporate to the gas and had Eth. So from the results we got our hypothesis wasn't that off. The reason I think the graph had plateaus when the water was changing phases was because the particles where just having space added between them and the upward slopes where when the water was boiling which meant the particles where moving faster.