Unit Conversions
and Scientific Notation
Metric Stairstep Chart
Do No:
kilo
hecto
Match these:
100
.01
.1
1.
Draw the and label the Metic Step Chart
in your notebook
1.
Match each number to its corresponding
stair (based on the prefix)
deka
Meter
Liter
Gram
deci
.001
centi
1,000
10
1
milli
Metric Stairstep Chart
Kilo
1,000
Hecto
100
Deca
10
Meter
Liter
Gram
1
Deci
.1
Centi
.01
milli
.001
You try! Convert the following:
1) 47 centimeters to dekameters
2) 3.5 hectograms to milligrams
3) 0.002 liters to kiloliters
Scientific Notation
• Writing any given number as a number
between 1 and 10, multiplied by a power of
10
Write the following in scientific notation.
Ex A: 23,6000,000
Ex B: 0.0000236
Write the following as an ordinary decimal.
Ex C: 2.57 x 104
Ex D: 7.853 x 10-3
You try! Write the following in
scientific notation.
1)
2)
3)
4)
5)
6)
7)
230
53900
0.0361
0.0680
3.26
0.5821
361000000
You try! Write the following as
an ordinary decimal number.
8)
9)
10)
11)
12)
13)
14)
2.3 x 103
2.3 x 10-2
5.64 x 105
7.931 x 10-4
9.97 x 100
6.04 x 107
4.215 x 10-1
Scientific Method
What is the scientific method?
process that is used to find ________
answers to
• A _________
questions about the world around us
Is there only one “scientific method”?
• No, there are several versions of the scientific method.
steps while others may have
Some versions have more ______,
only a few. However, they all begin with the identification
problem or a __________
question to be answered based
of a ___________
on observations of the world around us and provide an
organized method for conductions an analyzing an
____________
experiment
What is a hypothesis?
educated guess based on observations
• An ______________
and your knowledge of the topic
What is data?
• ____________
information gathered during an experiment
• Match the following phrases to the definitions on
your flow chart. Be sure to read each description
very carefully! Use PENCIL in case you make an
error! 
Communicate the Results
Form a Hypothesis
Perform the Experiment
Analyze the Data
Modify the Experiment
Create an Experiment
Identify the Problem
Perform the Experiment
Form a Hypothesis
Analyze the Data
Create an Experiment
Communicate the Results
Identify the Problem
Modify the Experiment
Online Game
• http://aspire.cosmicray.org/labs/scientific_method/sci_method_m
ain.html
• Observation: Using one or more of your senses
to collect data
Fact vs Inference
• What actually
happens
• An interpretation of an
observation that is
based on evidence or
prior knowledge
• Data: Facts, figures and other evidence
gathered through observation