Why do liquids flow? 

Important Questions on Matter in Our Surroundings

EASY

9th CBSE

IMPORTANT

Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 33

Why do people in villages use earthen pots in summer to cool water?

EASY

9th CBSE

IMPORTANT

Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 34

Steam produces more severe burns as compared to boiling water. Why? 
 

EASY

9th CBSE

IMPORTANT

Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 35

Temperature of a liquid does not change when it boils. Why?

EASY

9th CBSE

IMPORTANT

Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 36

Cotton being a solid floats on water. Why?

EASY

9th CBSE

IMPORTANT

Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 37

Diffusion of gases in water is essential. Explain the term with suitable example. 

EASY

9th CBSE

IMPORTANT

Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 38

People sprinkle water on open ground or roof on a hot sunny day. Why?  

EASY

9th CBSE

IMPORTANT

Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 39

On a hot humid day, why do people perspire a lot?

EASY

9th CBSE

IMPORTANT

Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 40

Why a balloon kept in the Sun burst after sometime?