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WorksheetsBlow Hot Blow Cold
Total questions: 31
Worksheet time: 16mins
Fill in the blanks:-
Our breath is __________ than hot tea and hence we blow air to cool tea.
COLDER
HOTTER
FILL IN THE BLANK:-
We __________ our hands in winter by blowing on them, when they are cold.
WARM
COOL
Fill in the blanks:-
The air blown from our mouth is __________ in a cold winter.
HOT
COOL
Fill in the blanks:-
The air we breathe out contains __________ which turns into drops of water when comes in contact with a cold surface.
water vapour
Dust
Fill in the blanks:-
A popcorn seller fans the burning coal to increase the __________ supply.
oxygen or air
carbon dioxide
Whenever the air flows __________ the paper snake will move in a clockwise direction.
downwards
upwards
Fill in the blanks:-
Our breath is __________ than hot tea and hence we blow air to cool tea.
COLDER
HOTTER
FILL IN THE BLANK:-
We __________ our hands in winter by blowing on them, when they are cold.
WARM
COOL
Fill in the blanks:-
The air blown from our mouth is __________ in a cold winter.
HOT
COOL
Fill in the blanks:-
The air we breathe out contains __________ which turns into drops of water when comes in contact with a cold surface.
water vapour
Dust
Fill in the blanks:-
A popcorn seller fans the burning coal to increase the __________ supply.
oxygen or air
carbon dioxide
Whenever the air flows __________ the paper snake will move in a clockwise direction.
downwards
upwards
Fill in the blanks:-
__________ air is heavy and comes down.
COLD
HOT
WARM
Fill in the blanks:-
__________ air is light and rises up.
HOT
COLD
WET
Fill in the blanks:-
We use a __________ to listen to the sound of a heartbeat.
stethoscope
microscop
We breathe in __________ rich air.
Oxygen
Carbon dioxide
Water vapour
How do we make our cold hands warm during winter?
By keeping them in ice
By pouring water
By keeping our mouth wide and blowing on them
Which air is cooler?
When you blow hard keeping your hands near your moith
When you blow keeping your hands at some distance from your mouth.
What is the child doing in this picture?
Playing with the hot tea
Cooling the hot tea by blowing on it
Making the hot tea warmer
The cold air is dense, heavy and comes down.
True
False
Breathing rate _________ after we exercise.
Decrease
Increase
remain the same
When the air flows downwards, the paper snake moves in the direction.
clockwise
anticlockwise
No change
Identify the device
Telescope
Ear phone
stethoscope
Which gas is necessary for burning fire?
Carbon Dioxide
Oxygen
Nitrogen
Carbon Monoxide
When does our heartbeat become fastest?
Sitting
Running
Eating
During sleep
In Chapter "Blow hot Blow cold" the story has been written by _______________
Dr. A P J Abdul Kalam
Dr. Maulana Azad
Dr. Zakir Hussain
None of these
Why were woodcutter's fingers becoming numb?
He had pain in his fingers
Because it was too hot outside
Because it was too cold outside
None of these
Why did woodcutter made the chulha?
To cook tomatoes
To boil potatoes
To make chapati
To boil water
Name an instrument played by blowing air.
Sitar
Guitar
Been
All
How does hot air balloon works?
Hot air rises
Cold air rises
Cold & hot air moves down
All of these
(5) _________ air rises up.
Hot
Cold
None of these
Both of these
