This lesson will introduce standard units of measure (meters, grams, liters) and the physical properties they represent. It is 5 of 6 in the series titled "Metric Standard Units of Measure (SI Units)."

A slideshow featuring the various methods of measurement. Identify and understand unit conversion on systems of measurement.

This page provides eight tables of useful information such as Important Constants, Submicroscopic Masses, Solar System Data, Metric Prefixes for Powers of Ten and Their Symbols, The Greek Alphabet, SI units, Useful Formulae, and other...

This presentation explains conversion of units in the metric system, and gives some examples for understanding.

This lesson demonstrates how to convert units within the Standard Measurement System. It is 1 of 6 in the series titled "Converting Standard Units."

This brief slide show introduces some common prefixes for units of metric measurement.

Infographic highlights the different ways energy is measured.

This resource provides information on weights and measures, including unit conversion tables.

This lesson should help a learner understand why we use units and how they are governed by standards. It is 4 of 4 in the series titled "Introduction to Units & Standards."

How do you measure a military footprint? In people? Dollars? Space? This website is an ongoing attempt to map one aspect of that question- by visualizing the location of United States military installations.

This lesson will describe how to convert from unit to another in the Metric System. It is 5 of 5 in the series titled "Converting Units."

This lesson should help the learner understand how to use the SI system to make measurements. It is 3 of 5 in the series titled "The SI System."

This lesson should help a learner to practice recognizing base and derived units. It is 4 of 4 in the series titled "Practice Determining Base vs. Derived Quantities."

This lesson should help the learner understand the difference between base and derived quantities and be able to recognize them from one another. It is 4 of 4 in the series titled "Base & Derived Quantities."

This lesson introduces the concept of a conversion factor and explains how it can be used to convert between metric to metric units as well as between English and metric units for different quantities. It is 5 of 5 in the series titled...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A tutorial which introduces the International System of Units, and its use in making measurements during scientific investigation.