Table 1: Temperature of Frozen Water OverTime
Time (min.)	Temperature (°C)	Observation
0	-12	Water is frozen
5	0	Water is frozen
10	1	Ice is attached to thermometer but unstuck from test tube
15	14	There is a pool of water in the bottom of the test tube
20	2	The pool of water is flightly bigger, ice chunk is gettingsmaller
25	4	The ice chunk is over halfway melted
30	5	The Ice chunk is over halfway melted

Table 2: Temperature of Boiling Water OverTime
Time (min.)	Boiling Temperature (°C)
1	97
5	97

1. Look at your data in Table 1. What was the last measuredtemperature before the all ice melted (so it was still mixture ofice and water)?
2. Look at your data in Table 1. Describe what happened to thetemperature of the water as during melting process
3. What happened to the temperature of the water after itmelted?
4. Based on your observation of temperature during melting processhypothesize how the temperature of the water changed duringfreezing process.

1. What happened to the temperature of the water, which was placedon the oven top, during the heating process?

1. Look at your data in Table 2. What happened to the temperatureof the water after it started boiling?

1. What was the temperature of your boiling water? The standardboiling temperature for water is 100 °C. Does your measurementagree with this? Explain why or why not.

1. Explain why temperature does not change during a phase change.Where does the heat energy go if not into increasing or decreasingtemperature?