Distance - the linear amount of space between two objects or points. It is a Scalar quantity. The measurement of distance has been practiced since an early age.

Ruler	Tape Measures	Electronic Measuring Device

A variety of other tools such as telescopes and microscopes have also helped scientists measure distances.

After having practised numerous times, people can accurately 'eye' a distance. You should be able to approximate a metre because of its daily household use. We can often picture how far a distance is: let's say that we need to travel 3 kilometres to the nearest gas station, we can approxitmately picture how far that is, and approximate how much time it will take to get there.

Time - is the duration between two events and is most commonly measured in seconds, minutes, or hours.

Scientists and average people alike have understood that we can study closed periods of time, like the time it takes to travel a distance.

Please move on to the next lesson ::Measurement and Calculations::