Thursday, October 19, 2006

Basic Units in Science

There are several basic units you use to measure things in science.

Meters

A meter is the basic unit of distance in science. It’s about 40 inches.

Liters

A liter, or litre if you’re British, is science’s basic unit for volume. It’s equal to 1,000 cubic centimeters (cm3).

Grams

These are the basic unit of mass, although physics normally uses kilograms. Grams, however, are not to be used as a unit of weight as I’ll explain later.

Kelvin

The basic scientific unit of heat is the Kelvin. 0 K is absolute zero, or –273.15˚C. In other words, it’s the total absence of heat. Other than that, Kelvins and Celcius work the same way.

Seconds

You need a way to measure time, right? Well, so does science. Scientists use the second as the basic unit of time.

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