MEDIUM
9th CBSE
IMPORTANT
Earn 100

Define melting point of a solid. Discuss its significance.

Important Questions on Matter in Our Surroundings

MEDIUM
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 30
Discuss in brief the scales of measuring temperature and pressure.
MEDIUM
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 31
Clothes dry fast on a windy day. Why?
MEDIUM
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 32
A substance A has a definite volume and it assumes the shape of any container in which it is kept. Predict the physical state of the substance.
MEDIUM
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 33
A solid X liquefies at 25° C. The liquid changes back to the solid state at 20°C. Do you agree with the statement? Assign reason.
MEDIUM
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 34
With the help of an activity, show the diffusion in a liquid becomes faster as the temperature is increased.
MEDIUM
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 35
Define liquid state of a substance. Write the important characteristics associated with the liquid state.
HARD
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 36

How will you account for the following:

 Density of a substance in the solid state is more than in the liquid state.

HARD
9th CBSE
IMPORTANT
Super Simplified Science Chemistry CLASS IX>Chapter 1 - Matter in Our Surroundings>TEST YOUR KNOWLEDGE>Q 36

How will you account for the following:

Ice floats over water although it is solid.