HARD
9th CBSE
IMPORTANT
Earn 100

Comment upon the following: rigidity, compressibility, fluidity, filling a gas container, shape, kinetic energy and density of various states of matter.

Important Questions on Matter in Our Surroundings

HARD
9th CBSE
IMPORTANT
Describe the factors which affect evaporation.
HARD
9th CBSE
IMPORTANT
Define sublimation. Describe an experiment to show the sublimation of a solid substance. Name two substances from your daily life that sublime on heating.
HARD
9th CBSE
IMPORTANT
What is meant by the change of state? How can you change the physical state of a substance?
HARD
9th CBSE
IMPORTANT
Suggest an experiment to demonstrate the compressibility of gases and liquids.
MEDIUM
9th CBSE
IMPORTANT
What is the effect of heat on the states of matter? Illustrate the effect of heat on ice.
MEDIUM
9th CBSE
IMPORTANT
Why does water get cooled in an earthen pot?
MEDIUM
9th CBSE
IMPORTANT
Describe the factors which govern states of matter.
MEDIUM
9th CBSE
IMPORTANT
What are the characteristics of particles of matter?