HARD
8th ICSE
IMPORTANT
Earn 100

The freezing point of glycerol is 17.8 °C and its boiling point is  290 °C. Find its melting point and condensation point. 

Important Questions on Matter

MEDIUM
8th ICSE
IMPORTANT
On the basis of the kinetic theory of matter, explain why solids have a fixed shape and a fixed volume.  
EASY
8th ICSE
IMPORTANT

On the basis of the kinetic theory of matter, explain why liquids have a fixed volume but not a fixed shape. 

MEDIUM
8th ICSE
IMPORTANT
On the basis of the kinetic theory of matter, explain why gases have neither a fixed volume nor a fixed shape. 
HARD
8th ICSE
IMPORTANT
State the main postulates of the kinetic theory of matter.
EASY
8th ICSE
IMPORTANT
Explain conduction of heat in solids on the basis of the kinetic theory of matter.
MEDIUM
8th ICSE
IMPORTANT
Demonstrate the process of boiling with the help of an activity.
MEDIUM
8th ICSE
IMPORTANT
Which change of state of matter is responsible for the formation of clouds? 
MEDIUM
8th ICSE
IMPORTANT
Why does kinetic energy of the molecules of a substance increase when its temperature is raised?