Changes in Matter
Adapted from Jefferson Lab activities packet


Look at the picture of the candle burning.  The wax of a candle burns into ash and smoke. The original materials are changing into something different.  Changes that create a new material are called chemical changes.
Look at the picture of water boiling and changing into steam.  Steam is another form of water.  Heating water did not create a new material.  In changing the water from a liquid to a gas, only the state of the water changed.  Changes in the shape, size, or state of a material are called physical changes.

   Directions:  Study the changes that are occuring in each picture below.  Tell what is changing.  Then decide if the
                       change is a chemical change or a physical change.

What is Changing?What Kind of  Change?

  Challenge!  List three changes you observe at home.  Tell what is changing and what kind of change is occurring in each.
                    Can some changes be both physcial and chemical?