PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo
You can perform the activity given in the chapter (textbook) slight differently at home.
  1. Use two plastic bottles of the same size.
  2. Stretch one balloon on the neck of each bottle.
  3. Keep one bottle in the sun and the other in the shade.
  4. Record your observations.
Compare these observations and the result with those of book activity.
 
The balloon kept in the hot sun gets since the hot air present inside the bottle the air around it. This heating the air and the balloon by filling the space inside.
 
The gases that occupy more space and thus, become . When the warm air rises from a particular place, a is created and the air rushes into that space and fills it up.
 
While another balloon kept in the shade changes its shape. The balloon gets deflated since the air present inside the bottle .