Transcript Example #1

Measuring Volume: Outline
I. Volume
a. Definition: the amount of space an object
takes up (or occupies)
II. Volume of Liquids
a. Equipment Used: graduated cylinder, beaker
b. Unit of Measurement: liter (L)
milliliter (mL)
Packet p. 10
III. Volume of Regular Solids
a. Formula: V = L x W x H
b. Label: cm3
c. 1 cm3 =
1 mL
IV. Volume of Irregular Solids
a. Method Used: water displacement
Packet p. 10
Definition:
the amount of space an object
takes up (or occupies)
Instruments used: graduated cylinder
beaker
Metric unit of measurement:
liter
L
The graduated cylinder is
marked off in equal
units of volume.
The volume of the liquid
Is 7 mL.
meniscus
53 mL
Measuring Liquid Volume
Regularly shaped
Instrument used:
Formula:
metric ruler
V=L x W x H
Metric unit of measurement:
Definition:
cm3
the amount of space an object occupies
Booklet
5 cm
2 cm
10 cm
5, 4, 3
4, 3, 2
8 , 2, 3
Irregularly shaped
Method used:
Materials needed:
water displacement
graduated cylinder
Metric unit of measurement:
cm3
Booklet
Water Displacement Method
Step 1: Add water to a graduated
cylinder and record the amount.
Step 2: Place the object into the
graduated cylinder.
Step 3: Record the volume of the
water with the object.
Step 4: Find the difference in water
volume by subtracting.
A
B
Step 5: Convert the liquid volume
measurement (mL) to the
measurement for solid volume (cm3).
*** Remember: 1 mL = 1 cm3
Example #1
Volume of water in graduated cylinder A = 200 mL
Volume of water in graduated cylinder B = 270 mL
Difference in water:
Volume of rock:
A
B
270 mL - 200 mL = 70 mL
70 mL = 70 cm3
Volume of water without object: 32 mL
Volume of water with object: 38 mL
Difference in water volume:
38 mL
32 mL
6 mL
_____
Volume of object _____
6 mL = _____
6 cm3
Volume of water without object: 32 mL
Volume of water with object:
Difference in water volume:
44 mL
44 mL
32 mL
12 mL
_____
12 mL = _____
12 cm3
Volume of object _____
Volume of water without object: 65 mL
Volume of water with object: 69 mL
Difference in water volume:
69 mL
65 mL
4 mL
_____
Volume of object _____
4 mL = _____
4 cm3
Volume of water without object: 46 mL
Volume of water with object:
Difference in water volume:
54 mL
54 mL
46 mL
8 mL
_____
Volume of object _____
8 mL = _____
8 cm3
mL
Volume of water without object: 50
_____
52 mL
Volume of water with object: _____
Difference in water volume:
52 mL
50 mL
2 mL
_____
Volume of object _____
2 mL = _____
2 cm3
volume – the amount of space an object takes up
liquids are measured in mL or l
graduated cylinders and beakers are used to measure liquids
volume
solids are measured in cm3
V = L x W x H - regular-shaped solid
water displacement method - irregular-shaped solids