Download MODEL QUESTION PAPER (2016-2017) CLASS –VIII SUBJECT

MODEL QUESTION PAPER (2016-2017)
CLASS –VIII
SUBJECT- SCIENCE
Instructions:
1) All questions are compulsory.
2) Attempt all the sections separately.
3) Write the question numbers as it is given in the question paper. Do not change or modify the question
numbers.
4) Draw neat & labelled diagrams wherever required.
SECTION A
Q I. Choose the correct option:
(15)
1) Which of the following reproduces by splitting into two nuclei ?
1.hydra
2.mosquito
3. amoeba
2) Water in rivers flows downwards due to
1. friction
2. pressure
4. Frog
3. gravity
4. density
3) Which of the following disease is a result of improper functioning of thyroid gland?
1. goiter
2. diabetes
3. gigantism
4. thyroxine
4) Which of these hormones control the blood sugar level?
1. thyroxin
2.adrenaline
3.insulin
4. Testosterone
5) If a ray falls at 40o with the normal, what will be the angle between the reflected and incident ray?
1. 80o
2. 60o
3. 40o
4. 120o
6) Kaleidoscope is based on the principle of:
1. multiple reflection
2. diffusion
3. dispersion
7) Which of the following is not planet of solar system.
1.Venus
2.Sirius
3. Saturn
8) The number of nuclei present in a zygote is
1. none
2. one
3. two
9) Distance between the stars is expressed in
1. million years
2.billion years
3. light years
4. regular reflection
4. Mercury
4. four
4. trillion years
10) AIDS disease is caused by:
1. bacteria
2. virus
3. worms
11) Which of the following is a non- luminous object?
1. sun
2. star
3.moon
4. fire
4. protozoa
12) Which planet is called the Morning star ?
1. Mars
2. Mercury
3. Saturn
13) The smallest planet of solar system is
1. earth
2. mars
3. mercury
4. Venus
4. Venus
14) The period of life, when the body undergoes changes, leading to reproductive maturity is called
1. Childhood
2. Adolescence
3. Adult
4. Old age
15) The change from larvae to adult is called
1. Metabolism 2. Metamorphosis 3. Metastasis
4. Morphology
Q .II Write whether the following statements are true or false :
(5)
1. A charged glass rod attracts a charged plastic straw.
2. Oviparous animals give birth to young ones.
3. External fertilization takes place in frogs.
4. An embryo is made up of a single cell.
5. Light travels in a straight line.
Q.III Match the following:
(5)
A
1.
2.
3.
4.
5.
B
Star
Red planet
Largest planet
The morning or evening stars
Global communication
`
(a)
(b)
(c)
(d)
(e)
Venus
Jupiter
Geo –stationary satellite
Sun
Mars
SECTION B
Q.IV) Answer the following questions in short:
(6)
1) Why the stars are not visible during the day?
2) Name two planets having no satellites.
3) What is meant by earthing?
4) What are seismic waves?
5) Name two duct glands.
6) What is an embryo?
Q.V) Answer the following questions:
1) What is metamorphosis? Give examples.
2) Differentiate between viviparous and oviparous animals.
3) What are fertilizers ? Name two important fertilizers.
4) Kerosene oil catches fire faster than wood. Why ?
5) Distinguish between combustible and non-combustible substances.
6) Differentiate between internal fertilisation and external fertilization.
7) Why is easier to hammer a sharp nail into wood than a blunt one ?
(26)
8) What is meant by electrostatic force ? Is it a contact force or a non-contact force ?
9) Why is the charging by rubbing known as static electricity ?
10) Suggest two measures to protect ourselves from lightning.
11) What is colour blindness ? Give reason for this defect .
12) Is the moon a luminous body ?How are we able to see the moon ?
13) Name the terrestrial planets. Why are they called by this name ?
QV) Answer the following questions:
(18)
1) What is constellation ? Write two differences between a star and a constellation.
2) “Fertilizers are good for crop but cause pollution of soil and water”. Comment.
3) Describe the ‘Green House Effect’ in your own words.
4) Give three reasons, why soil should be turned and loosened ?
5) Describe the process of fertilization in human beings.
6) Name the hormones secreted by pancreas. Give function of each secretion.
QVI) Answer the following questions in brief:
(15)
1) Why is the distance between stars expressed in light years? What do you understand by the statement
that a star is eight light years away from the earth ?
2) Man A has a defect of vision due to which he can not see the nearby objects clearly ( though he can see
the distant objects clearly ). On the other hand, man B has a defect of vision due to which he can not see the
distant objects clearly (though he can see the nearby objects clearly ). The defect in man A can be corrected by
using spectacles containing lenses C whereas the defect in man B can be corrected by using spectacles
containing lenses D.
a) Name the defect of vision in man (i) A, and (ii) B
b) What type of lenses are (i) C, and (ii) D
3) (a) What is meant by ‘reproductive health’ ?
(b) State the conditions necessary to maintain good reproductive health during adolescence.