### activity:

Measurement
* Some measurements measure light intensity.
  * Maybe I am too far removed from school mathematics. Measurements are an application of mathematics, for example in trigonometry. Units are often given to give a lesson more a practical feel. They are rarely necessary. Of course you can integrate over Amperes or Pints, but that doesn't make them a mathematical topic. That is just my opinion of course.
* are activities
  - daily mean values in units of cfs
  - fundamental to many of the disciplines which make up mechanical engineering
  - literally the difference between life and death
  - outside dimensions in inches and centimeters
  - the raw data gathered from comparing an entity to a standard
* become science.
* confirm existence
  - ideas
  - predictions
* cover optical wavelengths from the ultraviolet, through the visible, to the infrared.
* covers everything from metric units to measuring angles.
* dimension, quantity, or capacity determined by comparison to a standard unit.
* discipline that requires both effort and financial investment.
* give information
  - specific information
* have degrees
  - negative values
  - results
  - spatial information
  - uncertainty
* helps describe our world using numbers.
* indicate differences.
* involve relative size
* involves the application of number, spatial, and other qualities of objects and events.
* is an activity
  - which has served human purposes for thousands of years
  - important way for young children to look for relationships in the real world
  - central to physics and nearly all discoveries involve experiment
  - certainly a major contribution of math to the many areas of science
  - fundamental to science and technology
* is made by the number of grains per cubic foot of gas emitted
  - under everyday conditions
  - one of the most widely used applications of mathematics
  - the 'fencing in' of the value of a number
* is the assignment of numbers to things
  - numerals to a system according to a set of rules
  - basis to create and maintain metrics
  - breaking up of a quantum of energy into equal units
  - collection of quantitative data
  - discovery and estimation of such ratios
  - essence of any practice that seeks to improve productivity
  - interpretation of a test score
  - rules for assigning numbers to objects to represent quantities of attributes
  - time in seconds
  - used in some form in almost every profession
* made of shadows can trace the path of the sun during the day.
* natural extension of matching and estimating.
* provide circumstantial evidence
* refers to what items to include or emphasize in the financial reports.
* reflect permeability values
* reflecting phytoplankton dynamics are extremely important in characterizing lakes.
* relate to growth.
* represent actual measurement of body
* research step related to sampling and the estimates derived from it.
* serve science.
* show accuracy
  - amounts
  - density
  - deviation
  - patterns
  - ranges
  - same amounts
  - variation
* support conclusions.
* tool for social action.
* use instruments
  - laws
  - techniques
* way of quantifying a comparison to a standard.

### activity | measurement:

Audiometry
* can document and measure hearing loss and the nature of it.
* usually demonstrates conductive hearing loss.

Bathymetry
* Bathymetries are measurements.
* is in meters
  - sort of an oceanographer's hydrography
* is the art and science of mapping the ocean floor
  - mapping and study of the topography of the ocean floor
  - measurement of water depth at various places in a body of water
  - study of ocean depth
* term used to describe the topography, or contour, of the ocean floor.