EASY
9th CBSE
IMPORTANT
Earn 100

A rubber band can change its shape on stretching. Will you classify it as solid or not? Justify your answer.

Important Questions on Matter in Our Surroundings

MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>TEST YOURSELF>Q 5
State one difference between a gas and a vapour.
MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>TEST YOURSELF>Q 6
What is the effect of the following on the rate of diffusion:
Temperature.
MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>TEST YOURSELF>Q 6

What is the effect of the following on the rate of diffusion:
Density of liquid

HARD
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>TEST YOURSELF>Q 7
On suffering from fever which will lower down your body temperature, more ice or ice-cold water and why?
MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>TEST YOURSELF>Q 8
You want to wear your favourite shirt to a party, but the problem is that it is still wet after a wash. What steps would you take to dry it faster? 
MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>TEST YOURSELF>Q 9
Explain the following:
A gas fills completely the vessel in which it is kept.
 
MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>TEST YOURSELF>Q 9
Explain the following:
Naphthalene balls disappear with time without leaving any solid.
 
HARD
9th CBSE
IMPORTANT
Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 1 - Matter in Our Surroundings>TEST YOURSELF>Q 9
Explain the following:
A desert cooler cools better on a hot dry day.