# I will be able to define matter and describe how the properties of

```I will be able to define matter and describe how
the properties of matter can be measured.
What is Matter?
• Matter
– Anything that has mass
and takes up space.
– Makes up most
materials.
– Can you think of
something that is not
matter?
I will be able to define matter and describe how
the properties of matter can be measured.
How Can Matter be Measured?
• Length
– Distance between two
points.
– Tools:
• Meter Stick
• Metric Ruler
– Units
• mm or cm = small
• m = short distances
• km = large distances
I will be able to define matter and describe how
the properties of matter can be measured.
How Can Matter be Measured?
• Measuring Length
I will be able to define matter and describe how
the properties of matter can be measured.
How Can Matter be Measured?
• Mass
– Describes the
amount of matter in
an object.
– Unit - grams (g)
– Balance
• Instrument used
to measure mass.
– Triple Beam
Balance
– Electronic
Balance
I will be able to define matter and describe how
the properties of matter can be measured.
How Can Matter be Measured?
• How to Measure Mass
– 1. Make sure the balance
is zeroed.
– 2. Place the object on the
pan.
– 3. Move the riders (or
windows) one notch at a
time away from the pan.
• Begin with the largest.
• Change the positions of
the riders (or windows)
until the pointer is at 0.
determine the mass.
I will be able to define matter and describe how
the properties of matter can be measured.
How Can Matter be Measured?
• How to Measure Mass
I will be able to define matter and describe how
the properties of matter can be measured.
How Can Matter be Measured?
• Mass
I will be able to define matter and describe how
the properties of matter can be measured.
How Can Matter be Measured?
• Weight
– A measure of the
gravitational force on
an object.
– Can vary depending on
gravity.
– Instrument Used
• Scale
– Measured in units of
force
• Unit – Newton (N)
Scale
Spring scale
I will be able to define matter and describe how
the properties of matter can be measured.
How Can Matter be Measured?
• Volume
– the amount of space an
object takes up
– Instruments used:
• Ruler
– Units:
• cm3
• mL
• L
I will be able to define matter and describe how
the properties of matter can be measured.
How Can Matter be Measured?
• Volume of a Solid
– Measured in units of
length (cm)
– Formula for a rectangle
• V=LxWxH
• Units = cm3
• Calculate the Volume of
the Box.
– Each side is 1 cm.
• V = ___________
I will be able to define matter and describe how
the properties of matter can be measured.
How Can Matter be Measured?
• Volume of a liquid
– Measured with a
– Meniscus
• The curve of a liquid
– Find the volume by
the meniscus.
– Units
• mL
• L
I will be able to define matter and describe the
properties of matter.
How Can Matter be Measured?
• Calculate the Volume of
the liquids.
I will be able to define matter and describe the
properties of matter.
How Can Matter be Measured?
• Calculate the Volume of
the liquids.
I will be able to define matter and describe the
properties of matter.
How Can Matter be Measured?
• Volume of Irregular Solids
– Water Displacement Steps
1.
2.
3.
volume
Gently slide object in the
cylinder.
– Don’t splash
4.
5.
6.
Record the final volume of
the water and the object.
Subtract the starting
volume from the final
volume.
The difference = volume of
the object.
I will be able to define matter and describe how
the properties of matter can be measured.
How Can Matter be Measured?
• Calculate the Volume of
the Rock
– Starting Volume (cylinder
A)
– Final Volume (cylinder b)
– Volume = Final Volume –
Starting Volume
A
B
I will be able to define density and describe how
density is measured.
Density Demo 1
I will be able to define density and describe how
density is measured.
How Can Matter be Measured?
• Problems:
– What will happen when the
small steel ball is placed in the
water?
– What will happen when the
large steel ball is placed in the
water?
• Hypotheses:
– If the small steel ball is placed
in the water, then the small
steel ball will _________.
– If the large steel ball is placed in
the water, then the large steel
ball will _________.
I will be able to define density and describe how
density is measured.
Density Demo 2
• Problems:
– What will happen when
an egg is placed in beaker
1?
– What will happen when
an egg is placed in beaker
2?
• Hypotheses:
I will be able to define density and describe how
density is measured.
How Can Matter be Measured?
• Density
– A measure of the amount
of mass in a given volume
• Mass and volume are
properties of all
substances.
• Density of substance
always remains the same
no matter how much of
the substance you have.
– Expressed as a ratio
• Units
– g/mL = g/cm3
I will be able to define density and describe how
density is measured.
How Can Matter be Measured?
• Density Example
of students in this room.
(represent molecules) in
the room, how would
that compare to having
76 students (molecules)
in the room
– Which situation would be
denser?
I will be able to define density and describe how
density is measured.
How Can Matter be Measured?
• Calculating Density
– Directions:
• 1. Write the correct
equation to use.
• 2. Plug in the numbers.
units)
I will be able to define density and describe how
density is measured.
How Can Matter be Measured?
• Calculating Density
1. Mass = 150g
Density = 50g/cm3
Volume =
2. Volume = 70 cm3
Density = 30g/ cm3
Mass = ?
I will be able to define density and describe how
density is measured.
How Can Matter be Measured?
• Density of Substances
– Once you know an
object’s density, you can
determine whether an
object will float/rise or
sink.
• If an object is less dense
that the surrounding
material it will float/rise
• If an object is more dense
than the surrounding
material it will sink.
I will be able to define density and describe how
density is measured.
How Can Matter be Measured?
• Density of Water
– Density of Water =
1g/mL or 1g/cm3
• If an objects density is
les than Is 1g/mL or
1g/cm3
– The object will
rise/float
• If an objects density is
greater than Is 1g/mL
or 1g/cm3
– The object will sink
I will be able to define density and describe how
density is measured.
How Can Matter be Measured?
• Math Problems
– Pumice is an igneous rock,
formed by rapidly cooling
lava. What is the density
of a 49.8g piece of pumice
that has a volume of 83
cm3? Will the pumice sink
or float?
I will be able to define density and describe how
density is measured.
How Can Matter be Measured?
• Math Problems
– Obsidian is another type
of igneous rock. What is
the mass of the rock if the
D= 2.6g/cm3 and the
volume is 92 ml? Will
Obsidian sink or float?
I will be able to define density and describe how
density is measured.
How Can Matter be Measured?
• Math Problems
– A student determines the
mass of a metal paperclip
to be 1.42g (grams). The
student also determines
the volume and finds that
it has a volume of 2mL.
• Determine the density of
the paperclip.
I will be able to define density and describe how
density is measured.
Calculate the Approximate Density of the Egg
1.
Using the appropriate tools,
determine the density of water / salt
water.
1.
2.
3.
4.
Mass the cylinder.
Add 20mL of solution to cylinder with
pipet.
Mass the cylinder and water.
Determine the mass of the water.
2.
Create a table to display your results.
For mass and volume of the water.
3.
Using the data you found,
approximate the density of the egg.
I will be able to define density and describe how
density is measured.
Calculate the Approximate Density of the Egg
Density
Saltwater
Freshwater
Mass
Volume
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