Page 158 - Active Science 5 Ebook and Activity

LET’S

REVISE

• For measuring length, mass, time, capacity and temperature, in earlier days, people used to

depend on body parts and natural objects.
• Metre is the standard unit of measurement of length. Millimetre, centimetre and kilometres
are other units to measure length.
• Kilogram is the standard unit of measurement of mass. Milligram and gram are other units
of mass.
• Litre is the standard unit of measurement of capacity of liquids. Millilitre and kilolitre are
the other units to measure capacity.
• Second is the standard unit of measurement of time. Time can also be measured in minute,
hour, week, month and year.
• Kelvin is the standard unit of measurement of temperature. The other units that are used
o
o
for measurement of temperature are degree Celsius ( C) and degree Fahrenheit ( F).

Glossary

• Measurement : To find the length, width, height, time, area, volume, etc.

• Mass : The amount of matter present in a particular body or object.
• Capacity : The amount of liquid a container can hold.
• Time : A particular moment in a day.

• Duration : The time period between two events.
• Temperature : The degree of hotness or coldness of an object.

• Thermometer : The commonly used device to measure temperature.

Practice Time

A. Tick the correct option.
1. Finding out the size or quantity of something is called___________
a. dimension b. area

c. volume d. measurement
2. Which of the following is not a unit of mass?

a. Milligram b. Gram
c. Kilogram d. Kilolitre
3. The amount of liquid that a container can hold is called its ___________

a. weight b. mass
c. capacity d. none of these

158 Active Science-5