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Meter. Liter. Gram. Measurement. Unit 1 Mrs. Callender. WHAT IS A Measurement?. How do I measure AND WHAT UNITS DO I USE?. LESSON ESSENTIAL QUESTION Covering pp. 12 and 13 of your book. What is wrong with this measurement?. The Screw measures 5.1. What is wrong with this measurement?.

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Measurement

Meter

Liter

Gram

Measurement

Unit 1

Mrs. Callender


Lesson essential question covering pp 12 and 13 of your book

WHAT IS A Measurement?

How do I measure AND WHAT UNITS DO I USE?

LESSON ESSENTIAL QUESTIONCovering pp. 12 and 13 of your book.


What is wrong with this measurement
What is wrong with this measurement?

The Screw measures 5.1


What is wrong with this measurement1
What is wrong with this measurement?

Missing Units

The Screw measures 5.1 cm


To have a measurement you must have two things
To have a Measurement you must have two things:

QUANTITY-Something that has magnitude, size, or an amount.

UNIT –

A quantity adopted as a standard of measurement.


Measurement1
Measurement

What would be a measurement for this volume?

76.0 mL


Metrification
Metrification

Most historians agree that Gabriel Mouton, the vicar of St. Paul's Church in Lyons, France, is the "founding father" of the metric system. He proposed a decimal system of measurement in 1670.


Si units
SI UNITS

1960

Système International

d’Unités or SI

Built on seven base units.




Metric system prefixes
Metric System Prefixes

  • These prefixes are based on powers of 10. What does this mean?

    • From each prefix every “step” is either:

      • 10 times larger

        or

      • 10 times smaller

    • For example

      • Centimeters are 10 times larger than millimeters

      • 1 centimeter = 10 millimeters


Metric system prefixes1
Metric System Prefixes

  • For each “step” to right, you are multiplying by 10

  • For example, let’s go from a base unit to centi

    1 liter = 10 deciliters = 100 centiliters

    • ( 1 x 10 = 10) = (10 x 10 = 100)

    • 2 grams = 20 decigrams = 200 centigrams

    • (2 x 10 = 20) = (20 x 10 = 200)


Metric system prefixes2
Metric System Prefixes

  • If you move to the left in the diagram, move the decimal to the left.

  • If you move to the right in the diagram, move the decimal to the right.


Metric system prefixes3
Metric System Prefixes

How many g are in 4 Kg?

1 Kg = 103 g therefore 4 Kg = 4 x 103 g

How many mg are in 4 Kg?

1 Kg = 106 mg therefore 4 Kg = 4 x 106 mg


Metric system prefixes4
Metric System Prefixes

Without using a calculator, convert the following using “think pair share”:

23.5 cg to dag 6. 10 hL to dL

3 mL to hL 7. 27 m to dam

4.25 x 105 KL to cL 8. 0.1 g to hg

65 cg to Kg 9. 0.25 L to KL

6.01 m to cm 10. 1000 cm to hm


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