Key terms and examples for measuring in the metric system
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| What is the metric system? | a system of measurement based on the number 10
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| Modern scientists use a version of the metric system called ___________ (abbreviated ____). | International System (SI)
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| What are the advantages of scientists using SI as the standard system of measurements? | Scientists can compare data and communicate with each other about their results accurately without having to convert all the measurements.
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| What number does the prefix "deka-" refer to? | 10
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| What number does the prefix "hecto-" refer to? | 100
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| What number does the prefix "kilo-" refer to? | 1,000
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| What number does the prefix "deci-" refer to? | 0.1 (one tenth)
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| What number does the prefix "centi-" refer to? | 0.01 (one hundredth)
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| What number does the prefix "milli-" refer to? | 0.001 (one thousandth)
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| What prefix refers to the number 10? | deka-
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| What prefix refers to the number 100? | hecto-
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| What prefix refers to the number 1,000? | kilo-
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| What prefix refers to the number 0.1? | deci-
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| What prefix refers to the number 0.01? | centi-
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| What prefix refers to the number 0.001? | milli-
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| How do you convert a metric unit to the next size LARGER? | divide by 10
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| How do you convert a metric unit the the next size SMALLER? | multiply by 10
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| What is length? | the distance from one point to another
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| In the SI (metric) system, what is the basic unit to measure length? | meter
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| 1 meter = _______ centimeters | 100 cm
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| What tool is used to measure length? | metric ruler
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| What is mass? | the measure of the amount of matter an object contains (weight)
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| In the SI (metric) system, what is the basic unit to measure mass? | kilogram
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| 1 kilogram = ______ grams | 1,000 grams
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| What tool is used to measure mass? | triple beam balance
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| What is the definition of weight? | a measure of the force of gravity acting on an object
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| What is volume? | the amount of space an object takes up
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| In the SI (metric) system, what is the basic unit to measure volume? | liter
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| 1 liter = _____ milliliters | 1,000 milliliters
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| What tool is used to measure volume? | graduated cylinder
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| What is the formula to measure volume of a rectangular solid? | V=LxWxH
(volume = length x width x height)
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| Which unit of measurement below would be best used for volume of a solid object? (A) cubic meter (B) cubic gram (C) liter (D) cubic centimeter | (D) cubic centimeter
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| What is a method that you could use to measure the volume of an irregular solid? | immerse the object in water and measure how much water is displaced
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| What is density? | a measure that compares the mass of an object to its volume
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| What is the formula to measure density of an object? | D=m/v
(density = mass divided by volume)
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| Which 2 units of measure would best be used for density? (A) grams per milliliter (B) cubic grams (C) grams per cubic centimeter (D) cubic centimeter | (A) grams per milliliter
(C) grams per cubic centimeter
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| Is the density of an substance the same for all samples of the substance? | No
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| An object will float if it is ______ (less or more) dense than the surrounding liquid. | less dense
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| What is the SI unit used to measure time? | second
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| 1 second = 1,000 ________ | milliseconds
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| What is temperature? | the measure of how hot or cold something is
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| What is the temperature scale that scientists commonly use? |
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| What is the official SI unit for temperature? | Kelvin
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| What is true about the Kelvin scale? |
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| What is an equation that shows how two units of measurement are related? | conversion factor
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| What is the abbreviation for kilometers? | km
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| What is the abbreviation for meters? | m
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| What is the abbreviation for centimeters? | cm
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| What is the abbreviation for millimeters? | mm
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| What is the abbreviation for grams? | g
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| What is the abbreviation for kilograms? | kg
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| What is the abbreviation for liters? | L
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| What is the abbreviation for milliliters? | mL
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| Give an example of the approximate length of a millimeter. | the thickness of a credit card OR the thickness of your fingernail
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| Give an example of the approximate length of a centimeter. | the metal band on a pencil eraser OR the width of your pinky fingernail
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| Give an example of the approximate length of a meter. | the height from the floor to a door knob
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| Give an example of the approximate length of a kilometer. | a road
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| What metric unit would you use to measure a the width of a sheet of paper? | centimeters
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| What metric unit would you use to measure the height of a mountain? | kilometers
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| What metric unit would you use to measure the height of a house? | meters
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