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• You wouldn’t use kilometers to measure the width of a penny!
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• You wouldn’t use kilometers to measure the width of a penny!
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Unit: _______
Definition:____________________________________________________________________
Tools: ___________________
Time is always the _________________ because it _______________________ and the scientist decides the interval.
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Unit: seconds (this is the standard unit however there are others).
Definition: how long it takes for something to happen.Tools: stopwatch or clock
Time is always the independent variable because it does not depend on anything and the scientist decides the interval.
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Unit: ______________________
Definition:______________________________________
Tools: ____________________
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Unit: meter, centimeter, kilometer
Definition: how far something is from one point to another.Tools: ruler, measuring tape
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Time
Sometimes these units aren’t enough!!!
So…we add _____________to our units.
Distance
____________
__________
__________
__________
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Time
Sometimes these units aren’t enough!!!
Sooooo…we add prefixes to our units.
Distance
hour, minute
inch, mile
seconds
meters
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______
______ Hecto
100 Deka-
_____ Basic Unit
(g, m, L)______
0.1 ______
______ Milli-
0.001
K____ H____ D__ B_ D_______ C________
M____
Identify the Basic Unit for each letter below:g=_________m=________L=_________
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Kilo-
1000 Hecto-
100 Deka-
10 Basic Unit
(g, m, L)Deci-
0.1 Centi-
0.01 Milli-
0.001
King Henry Died By Drinking
Chocolate MilkIdentify the Basic Unit for each letter below:g=__Grams_m=_meters_L=_Liters_
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Let’s Practice!
• The length of ten city blocks___________
• Across the science classroom________
• The length of your foot_________• The thickness of a dime_________
Determine the best measurement for:
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Practicing Conversions
36 cm = ____ m
28 mL = ____ L
5.25 m = ____ mm
480 mg = ____ g
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Green Blue Orange Puple
0102030405060708090
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_______________
It is often easier to transform data into a ____________ to get a
_____________________.
Definition:__________________________________________________________
_______________
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Green Blue Orange Puple
0102030405060708090
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PieBarLine
It is often easier to transform data into a GRAPH to get a
visual picture.
Definition: A model that helps us to picture the relationship between
two variables.
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Consistent Data
What does it mean to be consistent? Which Group has the most
consistent data?
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Precision vs. Accuracy• _________________
refers to how close a measurement is to the true value.
• ________________ describes how close together repeated measurements are. Goes along with “most consistent”
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Accuracy vs. Precision• Accuracy refers to how
close a measurement is to the true value.
• Precision describes how close together repeated measurements are.–Goes along with
“most consistent”
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