EASY
9th CBSE
IMPORTANT
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Why is density of solids mostly higher than that of liquids? 

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 30
A sponge can be compressed. Is it solid or not? Why?  
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 31
What is meant by kinetic energy?
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 32
Why do liquids flow? 
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.