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Class 9 Science CBSE Test Paper for matter in our Surroundings





Given below are the Class 9 Science CBSE Test Paper for matter in our Surroundings for matter in our Surroundings
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Question 1.
Describe these
a.Sublimation
b.Diffusion
c.Plasma
d.Brownian motion
e.Effect of pressure

Question 2.
What is latent heat? Describe its type with example?

Question 3.
What is evaporation? Describe with example? What are the factors influencing evaporation?

Question 4.
Give reasons-
a.The water kept in earthen pot (matka) remain cool?
b.Smell of perfume is spread all over the room.
c.If we put acetone or spirit in our palm feel cool.
d.Gases fill their container completely.
e.An iron almirah is said to be solid.

Question 5.
Convert-
a.47 ° C to Kelvin
b.367 K to ° C
c. 0 ° C to Kelvin

Question 6.
Differentiate between-
a.Boiling point and melting point
b.Diffusion in solid and diffusion in liquid
c.Boiling and evaporation

Question 7.
Write the characteristics of particle of matter? Describe any two of it with example and activity?

Question 8.
Arrange these in increasing order
-11 ° C, 20 ° C, 270 K, 200 ° C, -100 ° C, 174 K, 10 ° C

Question 9.
Which is of these is correct?
a. 1 atmosphere =$ 1.01 \times 10^5$ Pa.
b. 1 atmosphere =$ 1.01 \times 10^{-5}$ Pa.
c. 1 atmosphere =$ 1.01 \times 10^4$ Pa.
d. 1 atmosphere =$ 2.01 \times 10^5$ Pa.

Question 10.
The mass per unit volume of a substance is called density. it is denoted by $\rho$ is $\rho = \frac{mass}{volume}$.
Arrange the following in order of decreasing density -
air, exhaust from chimneys, honey, water, chalk, cotton and iron.

Question 11.
Ravi visited a Natural Gas Compressing Unit and found that the gas can be liquefied under specific conditions of temperature and pressure.The specified conditions are
(a) Low temperature, low pressure
(b) High temperature, low pressure
(c) High temperature, high pressure
(d) Low temperature, high pressure

Answers
5. a. 320 deg; C
b. 94 deg; C
c. 273 K
8. -100 ° C < 174 K < -11 ° C < 10 ° C < 20 ° C < 270 K < 200 ° C
9. (a)
10. iron > chalk > honey > water > cotton > exhaust from chimneys > air
11. (c)

 



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Class 9 Maths Class 9 Science
Reference Books for class 9 science

Given below are the links of some of the reference books for class 9 science.

These books by S.Chand Publications are detailed in their content and are must have books for class 9 students.
  1. Science for Ninth Class Part1 Physics
  2. Science for Ninth Class Part2 Chemistry
  3. Science for Ninth Class Part3 Biology
Some other books that might be worth considering are
  1. Oswaal CBSE Question Bank Class 9 Science Chapterwise & Topicwise We all know importance of practicing what we have studied. This book is perfect for practicing what you have learned and studied in the subject.
  2. Pearson Foundation Series (IIT-JEE/NEET) Physics, Chemistry, Maths & Biology for Class 9 (Main Books) | PCMB Combo These Foundation books would be helpful for students who want to prepare for JEE/NEET exams. Only buy them if you are up for some challenge and have time to study extra topics. These might be tough for you and you might need extra help in studying these books.
  3. Foundation Science Physics for Class - 9 by H.C. Verma This is one of my favorite Physics book for class 9. Most of the book is within the limits of CBSE syllabus. It might overwhelm you with its language but I feel if you can understand the content is authentic with plenty of problems to solve.

You can use above books for extra knowledge and practicing different questions.







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