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Scaled Instruments Accurately Reading Them

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What are They? A device that has ordered markings at an equal distance from each other. Used for measurement

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Examples

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Reading Them Look closely. Don’t Rush.

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Reading Scales The key to Success.

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Formula for Success Value of Each line = JUMP divided by # of SPACES JUMP # of SPACES = Value of Line

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What’s a “Jump” Jump is the value between the NUMBERS on the scale. JUMP Jump = 5 “How much do the numbers count up by?”

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What’s “# of Spaces?” # of spaces can be found by counting spaces between NUMBERS. Spaces # of Spaces =5

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To The Formula JUMP = 5 # of SPACES = 5 JUMP # of SPACES 5 5 == 1

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Value of Each Line is 1 Now you can find the value of any line. 1234913

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A Little Practice 102030 JUMP = ?? #of Spaces = ?? 10 ____ 10 =1 14 27

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Let’s Review “JUMP” is the value between the printed numbers. “#of Spaces” is the number of spaces you count between the printed numbers.

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Let’s Review Formula for success is: JUMP #of SPACES

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Off to the Lab Bring a Calculator

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Ch1 – S2 Measurements in Experiments. Measurements & Units When scientists make measurements, they report their results as n nn numbers and u uu units.

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