SCIENCE PRACTICE QUESTIONS
CLASS 8
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SECTION:
- A
Very Short type answer type questions
(one marks each)
1.
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Name two Kharif crop.
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1
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2.
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What is carbonization?
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1
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3.
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Define Ignition temperature.
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1
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4.
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Name a liquid metal and non- metal.
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1
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5.
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What is flora?
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1
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Short answer type
questions(02 Marks each)
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6.
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What are endemic species? Give two
examples.
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2
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7.
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What is habitat? Give name of two
habitat used by Micro- organism.
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2
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8.
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Define Red data book and its
importance.
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2
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9.
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What is pseudo podia? Write down its
function.
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2
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10.
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What are endocrine glands? Name two
endocrine glands.
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2
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Short answer type
question(3 Marks each)
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11.
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Write down three differences between
manure and fertilizer.
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3
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12.
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Distinguish between Thermosetting and
Thermoplastic Material with example.
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3
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13.
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Draw labeled diagram of typical cell.
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3
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14.
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What is Flame? Draw labeled diagram of flame with labeling
its different part’s.
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3
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15.
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Write down six physical properties of
metal.
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3
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Long Answer type
question (5Marks)
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16.
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Write down three uses of metals and
two uses of non- metals.
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5
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17.
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Define the following:-
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5
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(a)
Crude oil
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(b)
Coke
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(c)
CNG
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(d)
PCRA
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(e)
Natural Resources
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OR
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Write down five constituents of
petroleum refining with their one use.
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18.
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What is fuel? Write down four
characteristics of an Ideal fuel.
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5
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OR
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Define a Densification and Deforestation
with two consequences of each.
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19.
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Draw a labeled diagram of Male
reproductive organ of Human.
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5
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OR
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Draw a labeled diagram of Female
reproductive organ of Human.
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SECTION –B
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Each Question carry one marks. Choose
the most appropriate option.
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20.
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Hoe is an agriculture tool for
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1
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(a)
Removing weed
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(b)
Loosening of soil
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(c)
Both ‘a’ and ‘b’
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21.
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Following irrigation system is more
suitable for area where sufficient water is not available
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1
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(a)
Drip system
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(b)
Sprinkler system
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(c)
None
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22.
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The cells having Nuclear Material
without Nuclear membrane are called:-
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1
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(a)
Eukaryotic cell
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(b)
Prokaryotic cell
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(c)
Eukaryotic cell
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23.
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Global warming refers to the rise of
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1
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(a)
Temperature
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(b)
Atmospheric gases
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(c)
Global shape
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24.
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The largest cell in human being is
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1
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(a)
Blood cell
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(b)
Nerve cell
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(c)
Cheek cell
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25.
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The following is a communicable
disease
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1
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(a)
Tetnus
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(b)
Rabies
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(c)
Common cold
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26.
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Rayon is known as
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1
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(a)
Artificial Silk
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(b)
Renege rated fiber
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(c)
Both
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27.
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Name the suffocating and corrosive gas
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1
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(a)
Carbon di oxide
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(b)
Sulphur di oxide
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(c)
Oxygen
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28.
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An ecosystem is composed of
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1
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(a)
Living component
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(b)
Non- Living component
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(c)
Both
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29.
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External fertilization is common
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1
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(a)
Terrestrial Animal
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(b)
Aquatic Animal
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(c)
None of these
SCIENCE PRACTICE QUESTIONS
CLASS 8
SECTION: - A
Very Short type answer type
questions (one Marks each)
1.
|
Name two methods
for control weed.
|
1
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2.
|
Define fossil fuel.
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1
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3.
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Define calorific
value of a fuel.
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1
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4.
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Name a metal which
can be cut by knife.
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1
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5.
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What is fauna?
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1
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Short answer type
questions(02 Marks each)
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6.
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Define Endangered
animal with two examples.
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2
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7.
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Define Micro-
organism with two examples.
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2
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8.
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What is
pseudopodia? Write down two
examples.
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2
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9.
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Define internal
fertilization with two examples.
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2
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10.
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Define oviparous
animals with two examples.
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2
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Short Answer type
question( 3 Marks)
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11.
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Draw labeled
diagram of a typical cell.
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3
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12.
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Why storage of food
grains are essential. Name two structures for storage of grain.
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3
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13.
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Define
Thermoplastic and Thermosetting material with suitable examples.
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3
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14.
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How metal reacts
with
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3
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(a) Oxygen (b) Water and (c) Acids
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15.
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Define
Inexhaustible and exhaustible natural resources with suitable examples.
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3
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Long answer type
question (5 Marks)
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16.
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Write any five
characteristics of synthetic fibers.
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5
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OR
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Write down five
constituent of petroleum refining with their one use.
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17.
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What is fuel? Write
down four characteristics of an Ideal fuel?
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5
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OR
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|
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Expand the term
PCRA. List four advices given by PCRA while driving.
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18.
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Define the
following:-
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5
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(a) Crude
oil
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(b) Coke
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(c) CNG
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(d) LPG
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19.
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Write down five
differences between plant and animal cell.
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5
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OR
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|
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Define the function
of following:-
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(a) Plasma
Membrane
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(b) Mitochondria
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(c) Gene
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(d) Vacuole
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(e) Plastid
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SECTION B
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Each question
carries one mark. Choose the most appropriate answer from following:-
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20.
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Combine in an
agriculture tool for
|
1
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(a) Harvesting
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(b) Threshing
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(c) Both
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21.
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Acid rain refers to
|
1
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(a) Air
pollution
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(b) Falling
of Acid
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(c) Mixture
of Sulphur and Nitrogen oxide in air
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22.
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From the following
the ideal fuel is
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1
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(a) Wood
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(b) Coal
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(c) CNG
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23.
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The longest cell in
Human being is
|
1
|
|
(a) Blood
cell
|
|
|
(b) Nerve cell
|
|
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(c) Cheek
cell
|
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24.
|
The following is a
communicable disease
|
1
|
|
(a) Tetnus
|
|
|
(b) Common
cold
|
|
|
(c) Rabies
|
|
25.
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Rayon is known as
|
1
|
|
(a) Artificial
silk
|
|
|
(b) Regene
rated fiber
|
|
|
(c) Both
|
|
26.
|
Name the
suffocating and corrosive gas.
|
1
|
|
(a) Carbon di oxide
|
|
|
(b) Sulphur
di oxide
|
|
|
(c) Oxygen
|
|
27.
|
An ecosystem is
composed of
|
1
|
|
(a) Living Component
|
|
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(b) Non-
Living component
|
|
|
(c) Both
|
|
28.
|
Global warming
refers to rise of
|
1
|
|
(a) Global
shape
|
|
|
(b) Temperature
|
|
|
(c) Atmospheric
gases
|
|
29.
|
The change of shape
of Amoeba is due to
|
1
|
|
(a) Cell
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(b) Pseudopodia
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(c) None
of these
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EXTRA QUESTIONS-
1.Name the
process by which coal is formed from dead vegetation.
2.What is
ignition Temperature?
3.What is
red data book?
4.Define
time period.
5.Write the
characteristics of image formed by a plane mirror.
6.write two
examples of rabi crops.
7.Name the
instrument used to detect charge of a body.
8.Name the
device used to protect Building s from the effect of lightning.
9.What is
binary fission.
10. a
pendulum Oscillates 50 times in 5 seconds. find its time periods and
frequency.
11. State
the laws of reflection.
12.Explain
why a charge body loses its charge if we touch it with our hand.
13.What is
Constellation ?Give an Examples.
14.Mention
any six Agricultural Practices.
15.Indicate
Weather the following statement are true or false.
i)A Zygote
is formed as a result of fertilization.
Ii) an
embryo is made of a single cell.
iii)
Fertilization is necessary even in as actual reproduction.
16.What are
the causes and consequences of deforestation.
17. define
the following:-
a)Frequency
b)Amplitude.
18.Draw a
lable a sketch of human eye.
19.What is
an artificial satellite? Write four uses of artificial satellite/
20.Exaplain
the process of formation of coal and petroleum .
21.Design
and experiment to show5that air is essential for burning
22.What are
renewable and non-renewable source of energy? What will
happen if
all the non-renewable resources get exhausted?
23.Today
large demand of petroleum has increased its drilling from various
resources.
What will happen if it continues? What steps should be taken in
order to
mitigate such conditions?
Choose the
correct option in the following
24.A tadpole
develops into an adult frog by the process of
a)
Fertilisation b)Metamorphosis
c)Embedding
d)Budding
25.An
ecosystem is made of
a) plants
b)animals
c)Microorganisms
d) all of these
26.In
Punchmarhi Biosphere Reserve Bison ,Indian gaint squarrel are found they
are the
example of
a)endemic
species b)endangered species
c)extict
species d) None of these.
27.Which of
the following cannot be easily charged by friction?
a)A plastics
scale b) an infleted balloon
c) A woolen
cloth d) A copper Rod.
28.Rhizobium
bacteria present in Root nodules of leguminous crops help in
a)Crop
rotation b) Transplantation
c)Nitrogen
Fixation d) Transpiration