KENDRIYA VIDYALAYA SANGATHAN , LUCKNOW REGION
SESSION ENDING EXAM 2021-2022
CLASS VIII
SUBJECT –SCIENCE
TIME: 2 HRS.
MM: 40
GENERAL INSTUCTIONS:
1. There are a total of 24 questions and all questions are
compulsory.
2. There is no
overall choice , however an internal choice is provided in some of the
questions.
3. Question paper
contains four sections: A ,B, C and D.
4. Questions 1 to 10
are objective type (SECTION A) carry one mark each (10).
5. Question 11 to 14
are very short answer type (SECTION B) and carry one mark each (04).
6. Questions 15to
21 are short answer type (SECTION C) and
carry two marks each (14).
7. Questions 22 to 24
are long answer type (SECTION D) and carry 4 marks each(12).
8. Wherever required
draw neat and labeled diagrams.
SECTION A:
1. The rocky objects
present in between the orbits of mars and Jupiter planets are popularly called
as
A. Meteors B. Asteroids C.
Meteorites D. Comets
2. In human eye the
images are formed on the
A. Cornea B. Iris C.
Retina
D. Lens
3. Which of the
following can not be charged easily by friction.
A. A copper rod B. A ball of wool C. An inflated
balloon D. A glass rod
4. Which of the
following is NOT an effect of electric current.
A. Heating
effect B. Sound
effect
C.Magnetic effect D. Chemical effect
5. In which of the
following materials is the speed of sound maximum.
A. Air B. Sea
water C. Fresh water D. Iron
6. If you apply oil
on your hands the friction would
A. Be reduced B. Be increased C. Remain the same D. Depend upon the type of oil.
7. Adolescents should
take meals which are best for them such as
A. Chips, noodles,
coke sweets B.
Dal, chapatti, milk, vegetables
C. Rice, noodles, burger samosa D. Rice, cutlets,
chips, coke
8. SI unit of pressure is
A. newton/meter2 B. newton/meter C. newton D. newton
meter
9. Emergency or stress hormone is
A. Adrenaline
B. Thyroxine C. Testosterone D. Estrogen
10. With increase in the altitude, the pressure of the atmosphere
A. Increases B. Decreases C. Remains
constant D. Becomes zero
SECTION B:
11. Name two forces that you find acting around you most of the time.
12. What is the relation between time period and frequency of a
vibration.
13. Which hormone controls the sugar level in blood.
14. Why are ships and boats streamlined.
SECTION C:
15. Name the hormones produced by following endocrine glands- a)
Testis b) Ovaries c) Pancreas Pituitary gland
16. Write four effects of force.
17. Why static friction is more than sliding friction.
18. a) What is the audible range of frequency for humans .
b) What is low pitch and high pitch sound. Give one example of each.
19. What observations would you record when current is passed through
acidified water in a beaker containing containing two carbon electrodes
connected to the two terminals of a battery. Is this change a chemical change.
If yes , how.
20. a) What will happen when two inflated balloons rubbed with a woolen
cloth are brought near to each other.
b) What is an electroscope . Draw its diagram.
21.a) Draw a diagram to show formation of image in a plane mirror.
b) Write laws of reflection.
SECTION D:
22. a) Define a light year.
b) Name and draw any two constellations.
c) Name two planets which rotate from east to west. How does our Earth
rotates.
d) Write two differences between stars and planets.
23. Define the following- a) Green House effect b) Global warming
c) Potable water
d) Acid rain
24.a) What is dispersion of light.
b) What do you mean by blind spot.
c) Draw and label structure of human eye.
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