Not exact. An approximate measurement is sometimes called an estimate.

A temperature scale in which water freezes at 0°C and boils at 100°C.

A system of units that is based on multiples of 10. SI units are also called metric units.

starts at the coldest possible temperature whereas the Celsius scale starts at the freezing point for water.

The base SI unit of mass. 1 kilogram (kg) is equal to 1000 grams (g).

An SI unit of volume. 1 liter (L) equals 1000 milliliters (mL).

The base SI unit of length. 1 meter (m) equals 100 centimeters (cm).

Exact. A tool that gives values that are very close together.

A letter or word added to the beginning of another word to create a new meaning.

The numerical amount of something.

A method of writing very small or large numbers using powers of 10

A standard quantity of measurement.