User:Rreagan007/sandbox1

Vital articles is a list of subjects for which Wikipedia should have corresponding high-quality articles. It serves as a centralized watchlist to track the status of Wikipedia's most essential articles. This is one of the sub-lists of the fifty thousand article Vital articles/Level 5 and is currently under construction.

Articles are labelled as:


 * Featured articles
 * Former featured articles
 * A-class articles
 * Good articles
 * Delisted good articles
 * B-class articles
 * C-class articles
 * Start-class articles
 * Stub-class articles
 * A full list is at Template:Icon/doc

These symbols are updated manually and may be out of date; you are encouraged to fix any errors you discover.

Total articles: 85

= Basics (12 articles)=


 * 1)  Science (Level 1)
 * 2)  Nature (Level 2)
 * 3)  Scientific method (Level 3)
 * 4)  Observation (Level 4)
 * 5)  Experiment (Level 4)
 * 6)  Field research (Level 4)
 * 7)  Laboratory (Level 4)
 * 8)  Research (Level 4)
 * 9)  Scientific theory (Level 4)
 * 10)  Physical law (Level 4)
 * 11)  Scientific modelling (Level 4)
 * 12)  Scientist (Level 4)

= Measurement (73 articles)= This list contains units of measurement and articles on metrology. For the measured quantities (see the Science and Mathematics (Level 4) sections. For timekeeping and navigation (see the Everyday Life (Level 4) and Technology (Level 4) sections. For measurement errors (see the Statistics (Level 4) section in Mathematics.

General (12 articles)

 * 1)  Measurement (Level 3)
 * 2)  Accuracy and precision (Level 4)
 * 3)  Measuring instrument (Level 4)
 * 4)  Sensor (Level 4)
 * 5)  Metrology (Level 4)
 * 6)  Units of measurement (Level 4)
 * 7)  Metric system (Level 3)
 * 8)  International System of Units (Level 4)
 * 9)  United States customary units (Level 4)
 * 10)  Imperial units (Level 4)
 * 11)  Natural units (Level 4)
 * 12)  Planck units (Level 4)

Angle (3 articles)

 * 1)  Degree (Level 4)
 * 2)  Radian (Level 4)
 * 3)  Steradian (Level 4)

Dimension (13 articles)
Area (2 articles Length (9 articles)
 * 1)  Acre (Level 4)
 * 2)  Hectare (Level 4)
 * 1)  Inch (Level 4)
 * 2)  Foot (Level 4)
 * 3)  Cubit (Level 4)
 * 4)  Metre (Level 4)
 * 5)  Mile (Level 4)
 * 6)  Nautical mile (Level 4)
 * 7)  Astronomical unit (Level 4)
 * 8)  Light-year (Level 4)
 * 9)  Parsec (Level 4)

Volume (2 articles)
 * 1)  Gallon (Level 4)
 * 2)  Litre (Level 4)

Electromagnetism (11 articles)

 * 1)  Ampere (Level 4)
 * 2)  Farad (Level 4)
 * 3)  Coulomb (Level 4)
 * 4)  Henry (Level 4)
 * 5)  Hertz (Level 4)
 * 6)  Ohm (Level 4)
 * 7)  Siemens (Level 4)
 * 8)  Tesla (Level 4)
 * 9)  Volt (Level 4)
 * 10)  Watt (Level 4)
 * 11)  Weber (Level 4)

Light (3 articles)

 * 1)  Candela (Level 4)
 * 2)  Lumen (Level 4)
 * 3)  Lux (Level 4)

Mechanics (13 articles)
Energy, force and pressure (5 articles) Mass (7 articles) Velocity (1 article)
 * 1)  Calorie (Level 4)
 * 2)  Electronvolt (Level 4)
 * 3)  Joule (Level 4)
 * 4)  Newton (Level 4)
 * 5)  Pascal (Level 4)
 * 1)  Unified atomic mass unit (Level 4)
 * 2)  Avoirdupois (Level 4)
 * 3)  Kilogram (Level 4)
 * 4)  Ton (Level 4)
 * 5)  Pound (Level 4)
 * 6)  Ounce (Level 4)
 * 7)  Troy weight (Level 4)
 * 1)  Knot (Level 4)

Quantity (3 articles)
Amount of substance (1 article) Data (2 articles)
 * 1)  Mole (Level 4)
 * 1)  Byte (Level 4)
 * 2)  Bit (Level 4)

Radioactivity (3 articles)

 * 1)  Becquerel (Level 4)
 * 2)  Gray (Level 4)
 * 3)  Sievert (Level 4)

Temperature (3 articles)

 * 1)  Celsius (Level 4)
 * 2)  Fahrenheit (Level 4)
 * 3)  Kelvin (Level 4)

Time (7 articles)

 * 1)  Second (Level 4)
 * 2)  Minute (Level 4)
 * 3)  Hour (Level 4)
 * 4)  Day (Level 3)
 * 5)  Week (Level 4)
 * 6)  Month (Level 4)
 * 7)  Year (Level 3)

Other (2 articles)

 * 1)  Decibel (Level 4)
 * 2)  Katal (Level 4)