1. Measurement
By Aniruddh Kommajosyula
III C
Delhi Public School, Nerul
IT IS THE PROCESS OF FINDING OUT THE
SIZE OR QUANTITY OF SOMETHING.
2. Unit
A UNIT IS A FIXED QUANTITY THAT IS USED
AS STANDARD OF MEASUREMENT.
3. Length
Length is the size or the measurement of how
long something is.
In early days, body parts were used to measure
lengths. They are:
Hand Span Cubit
Foot Span Stride
4. Metre
The metre is the unit used for measuring lengths.
Smaller lengths are measured in centimetres.
m – metre
cm – centimetre
Do you know:
The tallest building in the world is in Dubai.
It is 829.8 m high.
5. Mass
Mass tells us the amount of material an object
contains.
Weighing balance is used to find the mass of an
object.
Kilogram is the unit used for measuring mass.
Smaller masses are measured in grams.
kg – Kilogram
g -- gram
6. Capacity
Capacity of a container is the amount of liquid it can
hold.
Litre is the commonly used unit for measuring
capacity.
Smaller amounts of liquid are measured in millilitres.
l – litres
ml – millilitres
A measuring cylinder is used to
measure the amount of liquid.
Measuring cylinders come in
various capacities.
7. Time
Time is measured using a clock or a watch.
The unit for measuring time is seconds.
We also use minutes and hours as other units.
