Understanding volume or capacity is especially important in the field of medicine or chemistry when one is dealing constantly with liquid measurement.
What is volume or capacity? In math, capacity is the amount a container will hold when full
Capacity is generally measured in milliliters, liters, or kiloliters.Take a look at the following container, which is a rectangular prism
If the length, width, and height of this three-dimensional container, measures 5 cm, 10 cm, and 20 cm respectively, the volume is 5 cm × 10 cm × 20 cm = 1000 cm^{3}
By definition, 1000 cm^{3} = 1 liter
So, the container above has a volume or capacity of 1 liter. This container is grossly or approximately the same size and has the same capacity as a large bottle of soda
Milli is a prefix which refers to a division by 1000 or a multiplication by 0.001.
1 milliliter is grossly the dimension of a container with length, width, and height of 1 cm, 1 cm, and 1 cm respectively since 1 cm × 1 cm × 1 cm = 1 cm^{3}
In real life this could be compared to the capacity of a dose of medicine
Kilo is prefix which refers to a multiplication by 1000,
so 1 kiloliter = 1 liter × 1000 = 1000 liters
1 kiloliter is approximately the capacity of a king-size water bed
As you may have noticed, kiloliters are used to measure huge quantity
Other real life examples of capacity:
Items that may require kiloliters to measure them:
Amount of oil or gas heat in your tank
Annual milk production in Massachusetts
Amount of water in swimming pool
Items that may require liters to measure them:
Amount of water consumed in a day by a human being ( About 1-6 liters technically. Depends on how thirsty you are)
A carton of ice cream
Amount of milk a cow will give per day.
By the way a cow can probably produce about 4 gallons of milk a day
Since 1 US gallon = 3.785 liters, 4 gallons = 4 × 3.785 = 15.14 liters
Items that may require milliliters to measure them:
A glass of water
A one scoop ice cream
A bottle of perfume
I hope understanding volume and capacity was made clystal clear with these real life examples of volume