MEDIUM
9th CBSE
IMPORTANT
Earn 100

Draw the ‘states of matter triangle’ to show the interconversion of states of matter.

Important Questions on Matter in Our Surroundings

MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Long Answer Type Questions>Q 59
How can the evaporation of a liquid be made faster?
HARD
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Long Answer Type Questions>Q 60

What is evaporation? State the various factors which affect evaporation.

MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Long Answer Type Questions>Q 60
Why does evaporation cool a liquid?
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions (MCQs)>Q 61
Which of the following are also considered to be the states of matter?
(i) Plasma
(ii) Platelets
(iii) BEC
(iv) BHC
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions (MCQs)>Q 73
During summer days, water kept in an earthen pot (pitcher) becomes cool because of the phenomenon of:
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions (MCQs)>Q 75
The conversion of a solid into vapours without passing through the liquid state is called:
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions (MCQs)>Q 76
The evaporation of water increases under the following conditions:
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Multiple Choice Questions (MCQs)>Q 80
During respiration, glucose and oxygen enter our body cells and waste products, carbon dioxide and water leave the body cells by the process of: