Changes Around Us
Changes Around Us: Overview
The topic will explore the changes occuring in our everyday life. It also highlights the process of transformation of milk into curd, the change in the colour of tea and many more such examples.
Important Questions on Changes Around Us
In winter duration of night is shorter than in summer.
Give an example where things have changed with time.
What is evaporation? Give some examples.
How can the dissolved salt be separated from water?
Which type of clothes absorbs the sweat easily thereby allowing it to evaporate easily?
It is a hot summer day,Priyanshi and Ali are wearing a cotton and a nylon clothes respectively.Who do you think would be more comfortable?
Identify the phenomenon responsible for the spread of disease spreading germs when we sneeze.
The phenomenon of change of a liquid into the gaseous state at any temperature below its boiling point is called _____.
Evaporation of a liquid at room temperature leads to a _____ effect.
Which of the following conditions will increase the evaporation of water?
During summer, _____ helps to keep the water in an earthern pot cool.
During summer, water kept in an earthen pot so that it remains cool. The water becomes cool because of the phenomenon of
If the surface area is increased, the rate of evaporation .
Change of liquid state to gases state is known as _____.
Sodium chloride can be separated from water by the physical process of _____.
What is the process of conversion of liquid into vapours, known as?
