The students are then asked to test whether a different metal cube is also made of aluminum. Which property listed in the table would best help the
students make that determination?
o length of each side
O volume
O melting point
O mass

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 .