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1meter

1 yard

Fahrenheit (°F)

A temperature measurement where water freezes at 32° & boils at 212°.

1L

1quart

1in

2.5cm

1kg

2lbs

1oz

30grams

5km

3miles

metric system

A decimal system of weights and measures based on the meter and on the kilogram.

percent error

A measure of how inaccurate a measurement is, standardized to how large the measurement is. Formulas vary

Scientific Method

A method for representing a very large or very small number and for easily indicating the number of significant figures.

KELVIN(K)

A metric unit of temperature measurement where 0° is considered absolute zero absolute zero - theoretical lowest possible temperature

Celcius (°C) also Centigrade

A metric unit of temperature measurement where water freezes at 0° and boils at 100°.

Measurement

A quantitative observation

SI units

International System of units based on the metric system and on units derived from the metric system.

significant figures

The certain digits and the first uncertain digit of a measurement.

precision

The degree of agreement among several measurements of the same quantity; the reproducibility of a measurement.

accuracy

The measure of how close a value is to the correct value.

English system

The measurement system used in many countries including the United States using feet, pounds and seconds.

units

The part of the measurement telling us the scale being used.

dimensional analysis

The process of using conversion factors to change from one unit to another. (also called Factor-Label Method or the Unit Factor Method)

mass

The quantity of matter in an object. (SI unit based on kilogram)