Ask a question and write it down, as the first step of the scientific method. Examples include, "What makes an ice pack melt fastest?" or "What makes an ice pack melt slowest?"
Conduct research on how solids melt into liquids and about different variables that cause the melting effect, using the Internet, class notes or science textbooks. Choose four different ways to experiment with melting an ice pack.
Create a hypothesis to explain what you think the result of the experiment will be, using fact-based research to back up your hypothesis.
Begin your experiment to try to validate your hypothesis. Line up four bowls next to each other on a flat surface. Cut four pieces of masking tape. Label the tape "Variable 1," "Variable 2," "Variable 3" and "Variable 4" using a permanent marker. Place the tape on the bowl.
Pour hot water into the "Variable 1" bowl. Submerge the ice pack in the hot water and allow the bowl to sit at room temperature.
Apply direct heat to the ice pack in the bowl labeled "Variable 2." Place it near a heat source such as a heating vent or area heater or point a hair dryer toward it.
Pour rock salt over under and around all sides of the ice pack in "Variable 3."
Place "Variable 4" in a cooler and zip the cooler shut.
Time the experiment for 20 minutes. Create a chart labeled with the variables as the category headings while you are waiting to observe the changes to the ice packs. Write down how you manipulated each variable under the corresponding variable heading on the chart.
List your observations of each variable at the end of the experiment. Look at changes in the shape and texture of the ice pack in each variable to find which one was most or least affected.
Write a conclusion based on your observations. Explain whether or not your conclusion matched your hypothesis.