Answer: B. glycerin (1.26 g/cm3).
Explanation: The substances with higher value of density than the density of corn syrup will sink and the substances with lower value of density than the density of corn syrup will float.
A. graphite : has a density of
which is higher than the density of corn syrup which is
, Thus it will sink.
B. glycerin: has a density of
which is lower than the density of corn syrup which is
, Thus it will float.
C. copper :has a density of
which is higher than the density of corn syrup which is
, Thus it will sink.
D. silver: has a density of
which is higher than the density of corn syrup which is
, Thus it will sink.