## What
is Volume

## Volume
is the amount of space that something occupies.

### The
basic SI unit of volume is the cubic meter.

### One
cubic meter is the space occupied by a cubic box 1 m x 1 m x 1 m.

### Experiencing
Volume

- Take a deep breath.
- As your lungs fill with air, you can feel your chest expand.

This change in your lung size is an increase in VOLUME.

For smaller volumes, a smaller unit is used, the cubic centimeter
(cm^{3}) is used.

Fluids (liquids and gases) are usually measured in litres. A litre occupies the same space as a cube 10 cm on a side.

Since 10 cm x 10 cm x 10 cm =1000 cm, there are 1000 cubic centimeters in a litre.

1 thousandth of a liter is called a millilitre (ml) and occupies the same volume as one cm^{3}.

In other words, 1 cm^{3} = 1 ml. A 1
liter bottle holds 1,000 ml or, put another way, 1,000 cm^{3}.

One
milliliter (ml) of water takes up the same amount of space as one cubic
centimeter (cm^{3})