Time

Time is the sequence of events taking place. There are non standard and standard ways to tell time.

Singing a song, is a non standard way of keeping track of time. It could be in different rhythm or pace which can cause it not always be accurate.

Listening to a song is always the same. The song could be two minutes. It is an exact measurement of time.

People use sand clocks to keep track of their showers. Sand clocks are sand inside of an hourglass. The time will differ if their is a lot of sand or a little bit of sand.

LI: To investigate units of time.