Density and Buoyancy
8. All objects experience a buoyant
force when immersed in a fluid. As a basis for understanding this concept:

a. 
Students know density
is mass per unit volume. 
b. 
Students know how
to calculate the density of substances (regular and irregular
solids and liquids) from measurements of mass and volume. 
c. 
Students know the
buoyant force on an object in a fluid is an upward force equal
to the weight of the fluid the object has displaced. 
d. 
Students know how
to predict whether an object will float or sink. 
 Archmedes
principle activities; Cartesian diver; hot,cold, salt,fresh water;
methane bubles
 Carbon
dioxide, methane, balloons

Measuring
the density of copper

Measuring
the density of irregular objects

Cartesian
diver

Hot
air balloons
 Soda can demo: calculations; ebony, pumice, etc.
Chapters from Handson Chemistry &
Handson Physics (no graphics)
