Metric Mania and
Density
Answer the following questions!
You may use your notes from yesterday.
• How many significant figures are Write the following in Scientific
in each number?
Notation.
1. 1.23
2. 0.0045
3. 0.100
4. 9.001
1. 70200
2. 5000
3. 0.00042
4. 0.00104
Write in standard form.
1. 2.5 x 107
2. 4.08 x 10-2
Metric Conversions
Ladder Method
T. Trimpe 2008 http://sciencespot.net/
How do you use the “ladder”
method?
1st – Determine your
starting point.
2nd – Count the “jumps” to
your ending point.
3rd – Move the decimal the
same number of jumps in
the same direction.
4 km = _________ m
Starting
Point
Ending
Point
How many jumps
does it take?
4. __.
1
. = 4000 m
.
__
__
2
3
Conversion Practice
Try these conversions using the ladder method.
1000 mg = _______ g
1 L = _______ mL
160 cm = _______ mm
14 km = _______ m
109 g = _______ kg
250 m = _______ km
Metric Conversion Challenge
Write the correct abbreviation for each metric unit.
Kilogram _____ Milliliter _____ Kilometer _____
Meter _____
Millimeter _____ Centimeter _____
Gram _____
Liter _____
Milligram _____
Try these conversions, using the ladder method.
480 cm = _____ m
5.6 kg = _____ g
8 mm = _____ cm
5.6 m = _____ cm
120 mg = _____ g
Use your notes from yesterday and answer the
following:
Compare using <, >, or =.
25) 63 cm
27) 5 g
6m
508 mg
29) 1,500 mL
1.5 L
Find your name in
purple ink and sit at that
table.
Organization
Notebooks
• You should have a 3 ring binder for class with the following tabs
• Notes
• Classwork/ homework
• Labs
• Quizzes/Tests/Review Sheets
Lab Composition Notebook
• The first page front and back will be for the table of contents.
• The following pages will need to have the following information at the top
• Lab Title
• Date
DENSITY
Volume
The amount of space occupied by an object is
called its volume.
•V=lxwxh
• Water Displacement
• Final water level- initial
water level= V
Mass
-is a measure of the quantity of matter in an
object
Density
• Density is the mass per unit volume of a
material.
• You find density by dividing an object’s
mass by the object’s volume.
• D= M/V
You have a sample with a mass of 620 g & a
volume of 753 cm3. Find density.
• G
• U
• E
• S
• S
A liquid has a density of 0.87 g/mL. What
volume is occupied by 25 g of the liquid?
• G
• U
• E
• S
• S
An object has a volume of 825 cm3 and a
density of 13.6 g/cm3. Find its mass.
• G
• U
• E
• S
• S
Exit Ticket
• 164 cm = _________ m
• 25 mm= _________ km
• 16g= _________ kg
• Use the GUESS method
• A piece of tin has a mass of 16.52 g and a volume of 2.26 cm3.
What is the density of tin?