Using a Graduated Cylinder

Volume: Graduated Cylinder
What is volume?
Volume – (def.) the
amount of space an
object takes up
How could you find the
volume of a glass of
water? A penny?
Glass of water – measure
out the volume using a
graduated cylinder
 Penny – use the “Water
Displacement Method”
 Graduated cylinder (def) – A cylindrical
tool used to measure the volume of
liquids and irregular solids
 Found in various sizes to hold different
volumes of liquid
 Measured in milliliters (mL)
Metric Benchmark:
•The base unit used to
measure volume in the
metric system is the liter (L)
•The volume of 1 liter was
determined by calculating
the size of one cubic
•10 cm x 10 cm x 10 cm =
1000 cm³ = 1L
Which is larger?
A. 1 liter or 1 gallon
B. 1 liter or 1 quart
C. 1 milliliter or 1 fluid ounce
1 gallon = 3.79 liters
It would take approximately 3 ¾
1-liter bottles to equal a gallon.
1 fl oz = 29.573 mL
One 12-oz can of
soda would equal
355 mL
1 liter = 1.06 quarts
•1 milliliter (mL) = 1 cm3 (or cc) = 1 gram*
•5 milliliter (mL) = 1 teaspoon
•15 milliliter (mL) = 1 tablespoon
•240 milliliter (mL) = 1 cup
•1 liter (L) = 1000 milliliters (mL)
•3.8 liters (L) = 1 gallon
To find the volume of a liquid…
1. Pour the liquid into a graduated cylinder
(Be sure to use a measuring tool that is close in size to the
object you are measuring! )
2. Look at the water at
eye level
If you look closely you will
see that the surface of the
water is not straight across,
but curves slightly
This curve is called a “meniscus”
3. Read the line where the meniscus touches as
the volume of liquid being measured
The meniscus is (def.)
the concave surface of
a liquid used to
determine volume in a
graduated cylinder
To read the meniscus,
look at the lowest
point of the curve at
eye level.
*The meniscus forms when the molecules of the liquid
become attracted to side of the container that holds them
Step 1: Find the two labels
surrounding the water level.
*The meniscus is between 50 mL and 60 mL
Step 2: Use the labels to find the
nearest graduated increment.
Count up from the smaller line.
*The meniscus is between 52 mL and 53 mL
Step 3: Estimate the water level as
accurately as possible based on the
placement of the meniscus on the line.
*The meniscus is about ¾ of the way between 52 mL
and 53 mL, so the final reading would be 52.75 mL
Practice finding the volume for the
next few graduated cylinders:
•In between what two markings does the
meniscus fall between?
•What exact marking does the meniscus touch?
•Between which two markings does the level fall?
(Hint: Notice the interval markings)
•What exact marking does the meniscus touch?
Technique 1: To find the volume of an
irregularly shaped object, you must use a
method called the “Water Displacement
How do I find the
volume of this model
Step 1 – Measure the volume of
water in your graduated cylinder.
Record your information.
Step 2 – Place the solid object
into the cylinder.
Step 3 – Measure the new water
Step 4 – Subtract the old water
level from the new water level.
You now have the volume of the
solid object.
New Volume – Old Volume = Difference
(Volume of object being measured)
Technique 2: To find the volume of a
Rectangular Prism…
Multiply the length (l) x width (w) x height (h)
What is the volume of this
rectangular prism?
 l = 5 cm, w = 4 cm, h = 10 cm
 5 cm x 4 cm x 10 cm
 200 cm³
Technique 3: To find the volume of a
Cylindrical Prism…
Multiply ∏ r² h
What is the volume of this
cylindrical prism?
 ∏ = 3.14
 r = 5 cm
 h = 6 cm
Accelerated Bellwork:
 Find the volume shown in each of the
following graduated cylinders:
 Write your units in mL, cL, dL and L
Accelerated Bellwork:
 6.6 mL
 0.66 cL
 0.066 dL
 52.75 mL
 0.0066 L
 76 mL
 5.275 cL
 7.6 cL
 0.5275 dL
 0.76 dL
 0.05275 L
 0.076 L
Find the volume shown by each of the
following graduated cylinders:
9.75 mL
• 35 mL
• 6.1 mL