Part II Physical Properties and Changes A. Heating Iodine Crystals Observations Initial matter at bottom of beaker Matter (and state) in the volume of the covered beaker Name of the process involved Matter (and state) at the bottom of evaporating dish Name of the process involved Classify the type of change Type of property observed

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .