Conservation of Matter/Mass Lab
Glue this side into your science notebook after
completing the experiment.
Lesson created by Alycia Zimmerman, 2015, for classroom u se. Lab Technique Tip:
*Remember to make sure the arms of the balance are completely level before recording the mass. A glacier breaks apart into a new iceberg. Icebergs can weigh thousands of tons! What happens to the mass of the iceberg when it melts into the ocean? ------------------------------------------------------------------------------------Experimental Question: What happens to the mass of matter when it changes state/phase? My Prediction: What happens to the mass of an ice cube or snowball when it melts? _________________________________________________________ _________________________________________________________ Materials: ice or snow, sealed container, equal-­‐arm balance, gram weights, heat source, paper towel Procedure: (Discuss and then write your own procedure with your lab team. Make sure to write every single step!) 2) Why did you need to use a sealed container (closed system) for this experiment? _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ 3) a. What do you predict will happen to the mass of water when it freezes from a liquid to a solid? Data: Mass of Closed System Before Melting (in g) Mass of Closed System After Melting (in g) Questions: 1) What happened to the mass of your ice/snow when it melted? _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ b. Describe an experiment you could do to test your prediction about what happens to mass when water freezes from a liquid to solid ice. _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________