CBSE Sample
Question Paper | 9th CBSE Practice Paper
SCIENCE
Class IX Mock Test Paper with Marking Scheme, Solutions (SA II)
M.M.-80 Time-3-31/2 hrs.
General
Instructions:
1. Questions 1 to 5 are one mark
questions. They are to be answered in one word or one sentence.
2. Questions 6 to14 are two marks
questions. They are to be answered in about 30 words.
3. Questions 15 to 23 are three marks
questions. They are to be answered in about 50 words.
4. Questions 24 to 26 are five marks
questions. They are to be answered in about 70 words.
5. Question 27 to41are multiple choice
questions based on practical skills. Each question is a one mark question. You are to choose one most appropriate
response out of the four a, b,c and d provided to you.
1
Which animal tissue is commonly known as packaging tissue? 1
2. Calculate the formula unit mass of CaCO3
(given at masses: Ca = 40. 0µ, c=12 0µ, 0 = 16.0µ.
1
3.
An ion M 3+ has 10 electrons and 14 neutons
What is the atomic number and mass number of
M ? 1
4. State the
wave property that determines ‘pitch’ of sound. 1
5. How does the
speed of sound change on increasing the temperature? 1
6.
What do you mean by photoperiod? Name two processes that are dependent on
photoperiod. 2
7.
What will happen if:
i) The skin epithelium is not stratified.
ii) Stratified squamous epithelium lines blood
vessels. 2
8.
Name the target organ/organ system of AIDS virus. What is the cause of death in
case of
people suffering from AIDS? 2
9. What is meant
by (i) a solute and (ii) a solvent in a solution? Identify the solute and the solvent
in a homogenous mixture of iodine and alcohol. 2
10. A housewife
churned full cream milk with a milk churner.
(i) What did she observe after churning
milk?
(ii) What could be the possible reason for
this observation? 2
11. The average
atomic mass of a sample of an element ‘X’ is 16.2µ. What
is the percentage of
each isotope 16X and 18X
in the sample? 2
12. Why does a
wooden block float and an iron block sinks when both are placed on the surface
of
water ? 2
13. The
gravitational force of attraction between two masses is 16 N. What would be the
force of attraction between them if each mass and the distance between them are
doubled? 2
14. A child
winds his toy car by moving its key. Name the type of energy –
i) used up in the process
ii)
energy transformation taking place in it
The car then runs on the floor of the
room. Give the transformation of energy taking
place in it now. 2
15. To increase productivity per unit area ,the
farmers grow two different types of crops on
the same field in definite rows. What is
this practice called? What care is required to be
taken before selecting two crops for such
practice and why? Give any two reasons. 3
16.
Draw a neat diagram of the leaf epidermis showing pores through which exchange
of gases
takes place. Label any two parts giving
one function of each. 3
17. i) Which of the following diseases are
protozoan in origin?
a) Dengue b) Malaria c) Kalaazar d) AIDS
ii) Suggest any two ways you would like to
adopt, to prevent being infected by them.
3
18. Write two
properties each of a solution, suspension and a colloid with respect to
stability
and filterability. 3
19. (i) State
‘Law of constant proportions’.
(ii)
Taking the example of water, explain the law of constant proportions.
(iii)
Which postulate of Daltons
20. (i) Write the names of the compounds
represented by the following formulae:
a) Na 2S b) KNO 3
(ii) Write the chemical formulae of :
a)
Aluminum
Chloride
b)
Magnesium
oxide
(iii) Find out the mass of 12.044
× 10 23 atoms of magnesium (Given at mass of Mg = 24.0µ) 3
21. A stone is
dropped from the edge of the roof.
a) How long does it take to fall 4.9 m?
b) How fast does it move at the end of the
fall?
c) What is its acceleration after 1s and 2s?
(given that g = 9.8 m/s2) Click to View Complete Sample Paper
(all questions, Marking Scheme, Solutions)
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