HARD
9th CBSE
IMPORTANT
Earn 100

Draw a cyclic figure to show interconversion of states and explain fusion, vapourisation, condensation, solidification and sublimation.

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 1
Dry ice is 
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 2
300 K, 268 K, 546 K are equal to
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 3
The boiling point of diethyl ether, acetone and n-butyl alcohol are 35°C, 56°C and 118°C respectively. Which one of the following represents their boiling points in kelvin scale?
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 6
Choose the incorrect statement. 
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 7
A student heats a beaker containing ice and water. He measures the temperature of the contents of a beaker as a function of time. Which of the following will correctly represent the results? 
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 52
Write an activity to show that water can be made to boil even at a temperature below its normal boiling point (100°C).  
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 53
How will you determine melting point of ice experimentally with the help of neat and labeled diagram? 
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 54
How will you determine the boiling point of water experimentally? Draw a neat and labelled diagram.