{
 "source": "https://peabody.kids/flashcards/sci-si-units-prefixes",
 "id": "sci-si-units-prefixes",
 "title": "Metric Units and SI Prefixes",
 "category": "science",
 "subject": "Measurement",
 "levels": [
  "3-5",
  "6-8",
  "9-12"
 ],
 "description": "Metric units, prefixes and conversions.",
 "tags": [
  "metric",
  "SI",
  "prefixes"
 ],
 "frontLabel": "Prefix / question",
 "backLabel": "Meaning",
 "cards": [
  [
   "kilo-",
   "1,000 times (k)"
  ],
  [
   "hecto-",
   "100 times (h)"
  ],
  [
   "deka-",
   "10 times (da)"
  ],
  [
   "deci-",
   "one tenth (d)"
  ],
  [
   "centi-",
   "one hundredth (c)"
  ],
  [
   "milli-",
   "one thousandth (m)"
  ],
  [
   "micro-",
   "one millionth (the Greek letter mu)"
  ],
  [
   "nano-",
   "one billionth (n)"
  ],
  [
   "pico-",
   "one trillionth (p)"
  ],
  [
   "femto-",
   "10 to the negative 15 (f)"
  ],
  [
   "mega-",
   "1,000,000 times (M)"
  ],
  [
   "giga-",
   "1,000,000,000 times (G)"
  ],
  [
   "tera-",
   "one trillion times (T)"
  ],
  [
   "peta-",
   "10 to the 15th (P)"
  ],
  [
   "exa-",
   "10 to the 18th (E)"
  ],
  [
   "yotta-",
   "10 to the 24th (Y)"
  ],
  [
   "yocto-",
   "10 to the negative 24th (y)"
  ],
  [
   "How many millimeters in a centimeter?",
   "10"
  ],
  [
   "How many centimeters in a meter?",
   "100"
  ],
  [
   "How many meters in a kilometer?",
   "1,000"
  ],
  [
   "How many millimeters in a meter?",
   "1,000"
  ],
  [
   "How many grams in a kilogram?",
   "1,000"
  ],
  [
   "How many milligrams in a gram?",
   "1,000"
  ],
  [
   "How many milliliters in a liter?",
   "1,000"
  ],
  [
   "How many liters in a kiloliter?",
   "1,000"
  ],
  [
   "How many kilobytes in a megabyte (decimal)?",
   "1,000"
  ],
  [
   "Base unit of length",
   "Meter"
  ],
  [
   "Base unit of mass",
   "Kilogram"
  ],
  [
   "Base unit of time",
   "Second"
  ],
  [
   "Base unit of volume commonly used",
   "Liter"
  ],
  [
   "Base unit of temperature in SI",
   "Kelvin"
  ],
  [
   "Base unit of electric current",
   "Ampere"
  ],
  [
   "Base unit of amount of substance",
   "Mole"
  ],
  [
   "Base unit of luminous intensity",
   "Candela"
  ],
  [
   "How many base SI units are there?",
   "Seven"
  ],
  [
   "About how long is a meter?",
   "A little over 3 feet (39.4 inches)"
  ],
  [
   "About how long is a centimeter?",
   "About the width of a fingernail"
  ],
  [
   "About how far is a kilometer?",
   "About 0.6 miles"
  ],
  [
   "About how heavy is a kilogram?",
   "About 2.2 pounds"
  ],
  [
   "About how heavy is a gram?",
   "About a paper clip"
  ],
  [
   "About how much is a liter?",
   "A bit more than a quart"
  ],
  [
   "About how much is a milliliter?",
   "About 20 drops of water"
  ],
  [
   "What does 1 mL of water weigh?",
   "1 gram"
  ],
  [
   "Volume of 1 cubic centimeter",
   "1 milliliter"
  ],
  [
   "Volume of 1 cubic decimeter",
   "1 liter"
  ],
  [
   "25 mm equals how many cm?",
   "2.5 cm"
  ],
  [
   "3 km equals how many m?",
   "3,000 m"
  ],
  [
   "2 kg equals how many g?",
   "2,000 g"
  ],
  [
   "500 mL equals how many L?",
   "0.5 L"
  ],
  [
   "1.5 m equals how many cm?",
   "150 cm"
  ],
  [
   "Celsius to Fahrenheit",
   "F = C x 9/5 + 32"
  ],
  [
   "Fahrenheit to Celsius",
   "C = (F - 32) x 5/9"
  ],
  [
   "Freezing point of water",
   "0 C = 32 F = 273.15 K"
  ],
  [
   "Boiling point of water",
   "100 C = 212 F = 373.15 K"
  ],
  [
   "Normal body temperature",
   "About 37 C (98.6 F)"
  ],
  [
   "Room temperature",
   "About 20-25 C (68-77 F)"
  ],
  [
   "Convert Celsius to Kelvin",
   "Add 273.15"
  ],
  [
   "Scientific notation for 3,000",
   "3 x 10^3"
  ],
  [
   "Scientific notation for 0.002",
   "2 x 10^-3"
  ],
  [
   "Meter was once defined as",
   "One ten-millionth of the distance from the equator to the North Pole (1790s idea)"
  ],
  [
   "Which countries use the metric system officially?",
   "Almost every country; the US mainly uses customary units in daily life"
  ],
  [
   "What does SI stand for?",
   "International System of Units"
  ],
  [
   "Mass vs weight units",
   "Mass in kilograms; weight (a force) in newtons"
  ],
  [
   "Density of water",
   "1 gram per cubic centimeter"
  ],
  [
   "Hectare",
   "10,000 square meters"
  ],
  [
   "Metric ton (tonne)",
   "1,000 kilograms"
  ],
  [
   "Angstrom",
   "One ten-billionth of a meter, used for atoms"
  ],
  [
   "Micron (micrometer)",
   "One millionth of a meter"
  ],
  [
   "Nanometer",
   "One billionth of a meter; used for wavelengths of light"
  ]
 ]
}