blow hot and blow cold

The story Blow Hot Blow Cold is written by....

• DR A.P.J.KALAAM

• DR.ZAKIR HUSSAIN

• SACHIN TENDULKAR

• KALPANA CHAWALA

When we blow on it produce melodious sound?

• DHOLAK

• TABLA

• GUITAR

• FLUTE

Fill in the blanks:-

A popcorn seller fans the burning coal to increase the __________ supply.

• oxygen or air

• carbon dioxide

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

You must have seen someone blowing on their spectacles to wipe them clean. How does the air from mouth help in cleaning the spectacles?

Recognize the instrument.

a doctor uses a stethoscope to listen to your heartbeat.

• True

• False

The woodcutter blew on the fire to help it burn.

• True

• False

Name the musical instruments played by blowing air?

• 
• 
• 
• All

In which of the following objects we blow air?

• 
• 
• Both A& B

• None of the above