Phase of Matter

Hypothesis (answer in a complete sentence in lab book)

• What do you think will happen to the temperature of the water as it is heated and changes from a solid to a liquid to a gas?

• What type of graph do you think you will get for temperature (y) vs time (x)?

Procedure (summarize in lab book)

1. You are given a cup of ice with a thermometer frozen into the center of it. Immediately take the first temperature and start your stopwatch.

2. Set the hot plate to 7.

3. Peel off the styrofoam cup and place the ice in the beaker.

4. Take a temperature reading every minute for 25 minutes.

Data (put into lab book)

Graph (graph in lab book)

• You can graph this data by hand (instead of using LoggerPro) if you do not have access to LoggerPro. If you prefer to use LoggerPro, you can always email me and I can send you the link to get LoggerPro.

• Create a graph on a piece of graph paper (that you can staple or glue in) or by hand in your lab notebook with time on the x and temperature on the y. There is no graph type that we have studied that fits it or an equation to go with it. Notice how this graph has 4 distinct sections. Think about what was happening to temperature in each section when you discuss your graph in your conclusion.

Conclusion (write as three paragraphs in lab book)

• P #1 - Restate the purpose and describe what the procedure was.

• P #2 - Describe exactly what was happening to temperature according to each section of your graph as time went on. Was your hypothesis correct?

• P #3 - Discuss any errors that could have affected the data and suggest how to fix them.