Home UP BOARD Question Papers NCERT Solutions CBSE Papers CBSE Notes NCERT Books CBSE Syllabus

Matter In Our Surroundings Class NCERT Solutions

NCERT Solutions Class 9 Scinece Chapter 1 Matter In Our Surroundings Download In Pdf

CBSE Class 12 Old Year Question Papers Pdf Download
☞ Class 12 Solved Question paper 2020
☞ Class 10 Solved Question paper 2020
Chapter 1 Matter In Our Surroundings Download in pdf

Download NCERT Solutions for Class 9 Science

Chapter 1 Matter In Our Surroundings

(Link of Pdf file is given below at the end of the Questions List)

In this pdf file you can see answers of following Questions

NCERT Solutions Intext Questions Page no.3

Question 1. Which of the following are matter? Chair, air, love, smell, hate, almonds, thought, cold, colddrink, smell of perfume.

Question 2. Give reasons for the following observation: The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close.

Question 3. A diver is able to cut through water in a swimming pool. Which property of matter does this observation show?

Question 4. What are the characteristics of the particles of matter?

NCERT Solutions Intext Questions Page no.6

Question 1. The mass per unit volume of a substance is called density. (density = mass/volume). Arrange the following in order of increasing density – air, exhaust from chimneys, honey, water, chalk, cotton and iron.

Question 2. (a) Tabulate the differences in the characterisitcs of states of matter. (b) Comment upon the following: rigidity, compressibility, fluidity, filling a gas container, shape, kinetic energy and density.

Question 3.
Give reasons
(a) A gas fills completely the vessel in which it is kept.
(b) A gas exerts pressure on the walls of the container. (c) A wooden table should be called a solid. (d) We can easily move our hand in air but to do the same through a solid block of wood we need a karate expert.

Question 4. Liquids generally have lower density as compared to solids. But you must have observed that ice floats on water. Find out why.

NCERT Solutions Intext Questions Page no.9

Question 1. Convert the following temperature to celsius scale: a. 300 K b. 573 K.

Question 2. What is the physical state of water at: a. 250ºC b. 100ºC ? 3. For any substance, why does the temperature remain constant during the change of state? 4. Suggest a method to liquefy atmospheric gases.

NCERT Solutions Intext Questions Page no.10

Question 1. Why does a desert cooler cool better on a hot dry day?

Question 2. How does the water kept in an earthen pot (matka) become cool during summer?

Question 3. Why does our palm feel cold when we put some acetone or petrol or perfume on it? 4. Why are we able to sip hot tea or milk faster from a saucer rather than a cup?

Question 5. What type of clothes should we wear in summer?

NCERT Solutions Exercises Questions

Question 10 1. Convert the following temperatures to the Celsius scale.
(a) 300 K
(b) 573 K.

Question 2. Convert the following temperatures to the Kelvin scale.
(a) 25°C
(b) 373°C.

Question 3. Give reason for the following observations.
(a) Naphthalene balls disappear with time without leaving any solid.
(b) We can get the smell of perfume sitting several metres away.

Question 4. Arrange the following substances in increasing order of forces of attraction between the particles— water, sugar, oxygen.

Question 5. What is the physical state of water at—
(a) 25°C
(b) 0°C
(c) 100°C ?

Question 6. Give two reasons to justify—
(a) water at room temperature is a liquid.
(b) an iron almirah is a solid at room temperature.

Question 7. Why is ice at 273 K more effective in cooling than water at the same temperature?

Question 8. What produces more severe burns, boiling water or steam?

Question 9. Name A,B,C,D,E and F in the following diagram showing change in its state

Please send your queries to ncerthelp@gmail.com you can aslo visit our facebook page to get quick help. Link of our facebook page is given in sidebar

Class and Subject List

Ncert Solution for class 6 to 12 download in pdf

CBSE Model test papars Download in pdf

NCERT Books Free Pdf Download for Class 5, 6, 7, 8, 9, 10 , 11, 12 Hindi and English Medium

Mathematics Biology Psychology
Chemistry English Economics
Sociology Hindi Business Studies
Geography Science Political Science
Statistics Physics Accountancy

CBSE Syllabus Class 6 to 9, 10, 11, 12 Maths, Science, Hindi, English ...

Last year CBSE Question paper for Class 6 to 9, 10, 11, 12 Maths, Science, Hindi, English ...

Important Links

Follow Us On

Face book page ncerthelp twitter page youtube page linkdin page

Revised Syllabus for Class 12

Please Share this webpage on facebook, whatsapp, linkdin and twitter.

Facebook Twitter whatsapp Linkdin

Copyright @ ncerthelp.com A free educational website for CBSE, ICSE and UP board.