Boiling point and evaporation — task. Science CBSE, Class 9.

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

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Choose the correct reason for the actions:

1. Why an ice floats on water?

The particles in the water is less denser than the ice
The volume of the water is higher
The surface tension of water is higher
Ice is less denser than water

2. Find the incorrect statement below related to the evaporation.

Evaporation takes place within liquid
No bubbles are formed in liquid during evaporation
Evaporation is the surface phenomenon
Evaporation occurs at any temperature

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