PUMPA - SMART LEARNING

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

Book Free Demo
Answer the following questions:
  
1. The mass per unit volume of a substance is called density. (density = mass/volume).

Arrange the following in order of increasing density - air, exhaust from chimneys, honey, water, chalk, cotton and iron.
 
The  order of is air < exhaust from chimney < cotton < water < honey < chalk < iron.
 
2. Why do the states of matter differ?
 
The difference in various states of matter is due to the between the constituent particles.