Density
Lesson
Goal: Students will be able
to calculate the density of
regular shaped objects.
Ignitor (Warm Up)
 Definition
 Example
 How
of Density:
of Density:
do I calculate Density?:
Density Definition
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Density is a measure of how
much mass is contained in a
given unit volume (density =
mass/volume)How much mass
is in (1g/cm3) of any object.
Kid Friendly: how tightly
packed or loosely packed an
object is
See Picture: The hard boiled
egg is tightly packed with no
liquid inside it so it is more
dense than the egg that is not
hard boiled because it is
loosely packed and has some
liquid so it is not as dense.
Hard
boiled
Regular
Egg-not
hard
boiled
Examples of Density
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Density is how much mass is in one
small part of an object. (how much
stuff is inside an object)
Even thought the balls are the SAME
SIZE-they have Different Densities!!
Ball A: Size: 5422 cm3
Ball A: Mass: (16 pounds)7295
grams
Ball A: Density 1.34 g/cm3
Ball B: Size: 5422 cm3
Ball B Mass: (12 pounds) 5300 grams
Ball B Density: .98 g/cm3
Ball A
Size:
5422
cm3 but
the
density
is 1.34
g/cm3
Ball B
Size 5422
Cm3 but the density
Is .98 g/cm3
Calculate Density
 Density
Calculation: To find
the density of an
object you divide
the mass of the
object (m) by its
volume (v).
Exit Card (closing the lesson)
 Definition
 Example
 How
of Density:
of Density:
do I calculate Density?: