Uttarakhand Board Class 8 Question Paper 2022 Science

Annual Examination 2021-22
Class VIII
Subject: Science (tayy fa_il)
Time-2:30 hr M.M.-80
Note: Attempt all questions

Match the items given in Column 'A 'with those in Column 'B 1*5-5
Q.1
Column 'A' Column 'B'
(a) Bacteria (i) Baking of bread
(b) Rhizobium (ii) Causing malaria
(c) Yeast (ii) Causing cholera
(d) Protozoa (iv) Causing AIDS
(e) Virus (v) Fixing nitrogen
.1

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RETEUfayH (ii)

(v)HS& ReRt5YUT
Q.2 Fill in the blanks: 1x5-5
(a) Fiction opposes the ..between the surfaces in contact with each

other.
(b) Friction depends on the... ......of surtaces
(c) The unit of frequency is..

(e) Sprinkling of powder on the carrom board. ..friction,
(Sliding friction is . ......than the static friction.

.2
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5 5-5
Q.3 Write [ T] ifthe statement is true and [F] if it is false.
F
(i) Unicellular organisms have one celled body.
KTFL
(ii) Amoeba has irregular shape.
IT/F
(ii) The basic living unit of an organism is an organ.
TF
(iv) Sodium is a very reactive metal.
T/F
(v) All metals are ductile.

.3
[T/F
[T/F
[T/F
[T/F
T/F
1x5-5
sheet .
Choose the correct answer and write down in your
answer
Q.4
sheets?
(a) Which of the following can be beaten into thin

() Iron (ii) Phosphorus

(ii) Sulphur (iv) Oxygen
(b) Sound can travel through
(ii) Solid only
(i) Gas only
(iv) Solid, liquid and gase.
(i) Liquid only
Which of the following cannot be charged easily
by friction?
(c)
(i) A plastic scale (ii) A copper rod

(ii) An inflated balloon (iv) A woolen cloth
of:
(d) Yeast is used in the production
(ii) alcohol
(i) sugar
(ii) hydrochloric acid (iv) oxygen

Which of the following is
not a planet of the solar system?
(e)
(i) Sirius (ii) Mercury
(iv) Earth
(iii) Saturn

T.4

(a)

T
(T) T T TaRT
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Q.5 Give one example 1x5-5
of each
(a) Artificial fibres (b) Thermoplastics
(c) Artificial satellite (d) Largest planet of solar system

(e) Multicellular organism
.5

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Ix4=4
Q.6 Write the answer of the question given below.

(a) Name the fibre used for making parachutes and ropes for rock climbing

b) Name the petroleum product used for surfacing of roads.

(c) Name the force which always opposes motion.
Name the system by which a visually impaired person can read and write.
(d)
T.6

Q.7 Give reasons for the following: 2x3-6
(a) Aluminium foils are used to wrap food items.

fuel than wood.
b) LPG is a better domestic
with spikes.
(c) Sportsmen use shoes

1.7

State differences between the following. 32-6
Q.8
(a) Plant cell and animal cell

(b) Physical properties of metals and non-metals.

.8

Q.9 Make a labelled diagram of a candle flame
T.9
Q.10 List sources of noise pollution in your surroundings. 5
I.10
Q.11 Make labeled sketches of Amocba 5
.11

Q.12 Write the part which vibrates to produce sound in the following instruments- 4

(a) Dholak (b) Sitar
(c) Flute (d) Tabla

.12

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Q.13 Why should paper be saved ? Prepare a list of ways by which you can save paper

.13

Q.14 Suppose you spill a bucket of soapy water on a marble floor accidently. Would it make
easier or more difficult for you to walk on the floor? Give reason. 6

T.14

Q.15 Categorise the waste materials given below into biodegradable or non-biodegradable. 8
Peels of vegetables and fruits, paper, wood, cotton clothes, woollen clothes, polythene
and plastics bags , tin cans, "3ft over food stuff.,

T.15