LINK TO THE GIZMOS: https://gizmos.explorelearning.com/index.cfm?method=cResource.dspDetail&resourceID=557

From the list of Gizmos, select Phase Changes. For this activity, you will be examining the heating curve of water.

3. When setting each variable, ensure that the water temperature is below 0^oC and you are adding, not removing, heat from the system. You will complete three trials listing the value of each variable. When each trial has been completed, sketch the graph with the appropriate information (beginning point, shape of graph with values, ending point) or include a snapshot of the graph.

	Trial 1:		Trial 2:		Trial 3
Water Temperature (oC):	_________		_________		_________
Ice Volume (cm3):	_________		_________		_________
Altitude (m):	_________		_________		_________
Add Heat Energy (J/s):	_________		_________		_________
Graph:

4. How are the graphs similar? How are they different?

5. Label the following terms on your graph.

liquid

solid

boiling

melting