SCIENCE PRACTICE QUESTIONS CLASS 8 -FOR FINAL EXAMS 2020


SCIENCE  PRACTICE QUESTIONS CLASS 8
.
SECTION: - A
Very Short type answer type questions (one marks each)
1.
Name two Kharif crop.
1
2.
What is carbonization?
1
3.
Define Ignition temperature.
1
4.
Name a liquid metal and non- metal.
1
5.
What is flora?
1

Short answer type questions(02 Marks each)

6.
What are endemic species? Give two examples.
2
7.
What is habitat? Give name of two habitat used by Micro- organism.
2
8.
Define Red data book and its importance.
2
9.
What is pseudo podia? Write down its function.
2
10.
What are endocrine glands? Name two endocrine glands.
2

Short answer type question(3 Marks each)

11.
Write down three differences between manure and fertilizer.
3
12.
Distinguish between Thermosetting and Thermoplastic Material with example.
3
13.
Draw labeled diagram of typical cell.
3
14.
What is Flame?  Draw labeled diagram of flame with labeling its different part’s.
3
15.
Write down six physical properties of metal.
3

Long Answer type question (5Marks)

16.
Write down three uses of metals and two uses of non- metals.
5
17.
Define the following:-
5

(a)  Crude oil


(b) Coke


(c)  CNG


(d) PCRA


(e)  Natural Resources


OR


Write down five constituents of petroleum refining with their one use.

18.
What is fuel? Write down four characteristics of an Ideal fuel.
5

OR


Define a Densification and Deforestation with two consequences of each.

19.
Draw a labeled diagram of Male reproductive organ of Human.
5

OR


Draw a labeled diagram of Female reproductive organ of Human.






SECTION –B


Each Question carry one marks. Choose the most appropriate option.

20.
Hoe is an agriculture tool for
1

(a)  Removing weed


(b) Loosening of soil


(c)  Both ‘a’ and ‘b’

21.
Following irrigation system is more suitable for area where sufficient water is not available
1

(a)  Drip system


(b) Sprinkler system


(c)  None

22.
The cells having Nuclear Material without Nuclear membrane are called:-
1

(a)  Eukaryotic cell


(b) Prokaryotic cell


(c)  Eukaryotic cell

23.
Global warming refers  to the rise of
1

(a)  Temperature


(b) Atmospheric gases


(c)  Global shape

24.
The largest cell in human being is
1

(a)  Blood cell


(b) Nerve cell


(c)  Cheek cell

25.
The following is a communicable disease
1

(a)  Tetnus


(b) Rabies


(c)  Common cold

26.
Rayon is known as
1

(a)  Artificial Silk


(b) Renege rated fiber


(c)  Both

27.
Name the suffocating and corrosive gas
1

(a)  Carbon di oxide


(b) Sulphur di oxide


(c)  Oxygen

28.
An ecosystem is composed of
1

(a)  Living component


(b) Non- Living component


(c)  Both

29.
External fertilization is common
1

(a)  Terrestrial Animal


(b) Aquatic Animal


(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
2.
Define fossil fuel.
1
3.
Define calorific value of a fuel.
1
4.
Name a metal which can be cut by knife.
1
5.
What is fauna?
1

Short answer type questions(02 Marks each)

6.
Define Endangered animal with two examples.
2
7.
Define Micro- organism with two examples.
2
8.
What is pseudopodia?  Write down two examples.
2
9.
Define internal fertilization with two examples.
2
10.
Define oviparous animals with two examples.
2

Short Answer type question( 3 Marks)

11.
Draw labeled diagram of a typical cell.
3
12.
Why storage of food grains are essential. Name two structures for storage of grain.
3
13.
Define Thermoplastic and Thermosetting material with suitable examples.
3
14.
How metal reacts with
3

(a)  Oxygen      (b) Water   and        (c) Acids

15.
Define Inexhaustible and exhaustible natural resources with suitable examples.
3

Long answer type question (5 Marks)

16.
Write any five characteristics of synthetic fibers.
5

OR


Write down five constituent of petroleum refining with their one use.

17.
What is fuel? Write down four characteristics of an Ideal fuel?
5

OR


Expand the term PCRA. List four advices given by PCRA while driving.

18.
Define the following:-
5

(a)  Crude oil


(b) Coke


(c)  CNG


(d) LPG

19.
Write down five differences between plant and animal cell.
5

OR


Define the function of following:-


(a)  Plasma Membrane


(b) Mitochondria


(c)  Gene


(d) Vacuole


(e)  Plastid


SECTION B


Each question carries one mark. Choose the most appropriate answer from following:-

20.
Combine in an agriculture tool for
1

(a)  Harvesting


(b) Threshing


(c)  Both

21.
Acid rain refers to
1

(a)  Air pollution


(b) Falling of Acid


(c)  Mixture of Sulphur and Nitrogen oxide in air

22.
From the following the ideal fuel is
1

(a)  Wood


(b) Coal


(c)  CNG

23.
The longest cell in Human being is
1

(a)  Blood cell


(b)  Nerve cell


(c)  Cheek cell

24.
The following is a communicable disease
1

(a)  Tetnus


(b) Common cold


(c)  Rabies

25.
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


(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


(b) Pseudopodia


(c)  None of these



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




Popular posts from this blog

English VIII A and B Chapter 1 Where love is, God is

  Chapter 1. Where Love is, God is Date: 5.04.21 Topics taught: Reading of the chapter and explanation. Homework: Read the chapter. Date: 6.04.21 Topics taught: Explanation through audio clip. Date: 7.04.21 New words   1.infancy 2.monastery 3.distinctly 4.pawn 5.tattered 6.hoist Discussion of textual exercise Q.1 and Q.2 Date: 12.04.21 Topics taught: Textual exercise and workbook discussion. Answer key of textual exercise. Textual Answers : Q 1 Read the extracts given below and answer the questions that follow. a)       i. Martin is referred to as ‘he’ in the above extract.   ii Martin looked at the street more than he worked because the previous night he had heard the voice of Jesus saying, “Look out into the street tomorrow, for I shall come.” iii Stepánitch leaned his spade against th
Read more

English POEM Uphill

  Uphill Date- 8/6/21 Topics Taught- Explanation of poem. New Words 1.wayfares 2. travel-sore Textual exercise Q 1 Read the extracts given below and answer the questions that follow. a)       i. The speaker is the traveller. He/She is asking the question to the guide. ii T h e s p e a ke r w a n ts t o kn o w i f h e / s h e w il l f i n d a r e s ti n g p l a ce f o r t h e n i g h t o r w il l h e / s h e mi s s it. iii T h e guide answers the question by assuring the traveller that he/she will get shelter and will not miss the inn. iv slow     b)       i T h e s p e a k e r w a n ts to kn o w i f h e / s h e w il l f i n d c o m f o r t b e c a u s e h e / s h e w il l b e tired and weak after travelling.
Read more

English Poem 2. The Brook

  Poem 2. The Brook Date: 21.04.21 Topics taught: Read the poem and explanation of stanza 1. Date: 22.04.21 Explanation of poem and textual answers discussion. Textual Answers : Q 1 Read the extracts given below and answer the questions that follow. a)       i. The letter ‘I’ refers to the brook which has been personified in the poem. The brook is describing its journey from the place of origin to the river that it joins. ii In this part of its journey, the brook covers a vast expanse of land as it travels through ‘thirty hills, twenty thorpes and half a hundred bridges and a little town. iii The speed of the brook is rapid as it moves through the hills, ridges and villages. iv slip       b)
Read more