Learn what a derived unit is in chemistry and physics, get examples, see a list of metric or SI derived units of measurement.| Science Notes and Projects
A mole is a SI base unit of measurement. This is a definition of unit, its value, and example problems using the mole in chemistry.| Science Notes and Projects
Learn what an exact number is in chemistry, physics, and math. Get the definition and examples of exact numbers.| Science Notes and Projects
Learn about the Boltzmann constant. Get units and see how it relates to Avogadro's number, Planck's constant, and the ideal gas law.| Science Notes and Projects
Learn what Planck's constant is and why it is important in quantum mechanics. Get the definition and value of h.| Science Notes and Projects
Get the values for the speed of light in different units. Learn whether anything can go faster than the speed of light.| Science Notes and Projects
Get the absolute temperature definition in chemistry and physics. See which scales are absolute temperature scales and view unit conversions.| Science Notes and Projects