Calculate the estimated density of each ball. use the
formula
d= m/v
where d is the density, m is the mass, and v is the
volume. record your calculations in table a of your
student guide.
given that the density of water is 1.0 g/cm3, make a
prediction about whether each ball will float in water.
record your prediction in table a.
what is the estimated density of the table tennis ball?
record your answer to the nearest hundredth.
0.08 g/cm3
what is the estimated density of the golf ball? record
your answer to the nearest hundreth.
g/cm3

An  atom  (ours, not carroll's) consists of a positively charged  nucleus, surrounded by one or more negatively charged particles called  electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6  nm.  *  if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -