Class 8 Science Half Syllabus Test 2

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Chapters covered : 2, 3, 7, 9, 10, 11, 15, 17, 18

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Ques. No. 1-45 (1 marks each)

Only one option is correct

1. Which of the following is not considered as microorganisms?

1 point

Fungi

Algae

Bacteria

Virus

Clear selection

2. Which of the following disease and its causing microorganism is not incorrect?

1 point

Chicken pox - Bacteria

Influenza - Algae

Dysentery - Protozoa

Typhoid - Virus

Clear selection

3. Which of the following statement is incorrect?

1 point

The microbe growing on bread is a fungus

Aspergillus & Amoeba belongs to fungi whereas Paramoecium is a protozoa

Microorganisms can live hot springs but can't live in ice cold climate

None of the above

Clear selection

4. Which of the following is correct?

1 point

Louis Pasteur discovered both fermentation and pasteurisation

Antibiotics do not work against viruses

Chicken pox spreads through contact whereas Hepatitis A spreads through water

All of these

Clear selection

5. Disease causing microorganisms are called

1 point

Pnicogen

Pathogen

Antigen

Carrier

Clear selection

6. Which of the following fixes Nitrogen present in the soil?

1 point

Bacteria

Blue green algae

Bacillus anthracis

Both A & B

Clear selection

7. The phenomenon which is not essential for the survival for an individual but essential for the continuation of species is

1 point

Digestion

Reproduction

Excretion

Growth

Clear selection

8. Synthetic fibres are synthesised from raw materials called

1 point

Petrochemicals

Raw material of petroleum origin

Both A & B

PET

Clear selection

9. Choose the correct match

1 point

A - i, B - iii, C - iv, D - ii

A - iv, B - ii, C - i, D - iii

A - iv, B - ii, C - iii, D - i

A - ii, B - iv, C - i, D - iii

Clear selection

10. Which of the following is correct?

1 point

Poly - large, mer - units

Poly - small, mer - repeating

Poly - many, mer - repeating

Poly - many, mer - units

Clear selection

11. Which of the following is not a property of plastic?

1 point

Plastic is Non reactive

Plastic is heavy, strong and durable

Plastic is poor conductor

Melamine plastic makes uniform of firemen flame resistant

Clear selection

12. Which is not a bad consequence of deforestation?

1 point

Erosion

Decrease in soil fertility

Land for cultivation

Droughts

Clear selection

13. The speed with which water from the soil surface moves into the ground is known as

1 point

Seeping rate

Infiltration rate

Desertification rate

Moving rate

Clear selection

14. Which of the following is not an endemic species of Pachmarhi Biosphere reserve?

1 point

Sal

Bison

Indian Giant squirrel

Wild pineapple

Clear selection

15. The variety of organisms existing on earth, their interrelationships and their relationship with the environment is referred to as

1 point

Biosphere

Biodiversity

Biome

Fauna

Clear selection

16. Choose the correct option according to the statements; (i) The term used for bulges observed on the sides of body of hydra (ii) Another term for in vitro fertilization (iii) The first clone animal, Dolly was born (iv) A type of fission in amoeba

1 point

(i) Fission (ii) IVF (iii) 5th July 1998 (iv) Multiple fission

(i) Buds (ii) IVF (iii) 5th July 1998 (iv) Binary fission

(i) Buds (ii) IVF (iii) 5th July 1996 (iv) Binary fusion

(i) Buds (ii) IVF (iii) 5th July 1996 (iv) Binary fission

Clear selection

17. Which of these is not one celled?

1 point

Zygote

Ovum

Sperm

Embryo

Clear selection

18. The fertilization taking place outside of the body of female is

1 point

External fertilization

Internal fertilization

In vitro fertilization

Both A & C

Clear selection

19. Which of the following is not correct?

1 point

Only one bee in beehive lays egg known as Queen bee

Worker bees maintain the temperature of hive at around 40 °C to incubate the eggs

Worker bees are female, no male is is included in worker bee category

Fertilized eggs develop into female whereas unfertilized eggs develop into males

Clear selection

20. Reproductive age in women starts when their

1 point

Menstruation starts

Breast start developing

Body weight icreases

Height increases

Clear selection

21. Which of the following statement is correct?

1 point

A girl becomes pregnant if she looks at boys during menstruation

The mother is responsible for sex of the her child

A girl should not work in kitchen during menstruation

Girls should take special care of cleanliness during the time of menstrual flow

Clear selection

22. Find the correct match

1 point

1 - iii, 2 - ii, 3 - iv, 4 - i

1 - iii, 2 - ii, 3 - i, 4 - iv

1 - ii, 2 - iii, 3 - iv, 4 - i

1 - ii, 2 - iv, 3 - iii, 4 - i

Clear selection

23. Which of the following is incorrect about adolescence?

1 point

It is a strange period of life when someone is neither a child nor an adult

It is a period of both mental and reproductive maturity

Girls grow faster than boys and reach their maximum height earlier than boys

Increase in height and hairy line above the lips in boys are signs of adolescence

Clear selection

24. The growing voice box in boys can be seen protruding part of the throat called

1 point

Adam's apple

Pharynx

Larynx

Both A & B

Clear selection

25. Which is not a female hormone?

1 point

Estrogen

Progesterone

Prolactin

Testosterone

Clear selection

26. A force can not do which of the following?

1 point

Increase and decrease the speed

Change the direction

Change the shape

None of the above

Clear selection

27. A rocket has been fired upwards to launch a satellite in its orbit. Which is not among the forces acting on the rocket immediately after leaving the launching pad?

1 point

Gravitational

Frictional

Normal force

Both B & C

Clear selection

28. Which is not a correct statement?

1 point

Pressure exerted by water at the bottom of the container depends on the height of its column

A liquid exerts pressure on the walls of the container

Liquids exert equal pressure at the same depth

Gases do not exert pressure on the walls of their container

Clear selection

29. Which of the following is not an example of non contact force?

1 point

Electrostatic force

Frictional force

Magnetic force

Gravitational force

Clear selection

30. The correct statement is

1 point

An object may be at rest or in motion; both are its states of motion

Force applied on an object always add to each other

The strength of force is usually expressed by its magnitude

Both A & C

Clear selection

31. Who showed and when that lightning and the spark from our clothes are essentially the same phenomenon?

1 point

William Nicholson in 1752

Benjamin Franklin in 1842

Willian Nicholson in 1842

Benjamin Franklin in 1752

Clear selection

32. The incorrect statement is

1 point

The charges produced by rubbing are static

Moving charges constitute electric current

The charge acquired by glass rod when rubbed with silk as positive

The current in a circuit glows the bulb but do not heat the wire

Clear selection

33. The instrument used to test whether an object is carrying charge or not is

1 point

Electroscope

Telescope

Microscope

None of these

Clear selection

34. The power of an earthquake is measured on a scale and seismic waves are recorded by instrument are respectively

1 point

Richter scale & Seismic scale

Seismic scale & Richter scale

Seismograph & Richter scle

Richter scale and seismograph

Clear selection

35. A major earthquake occured in Bhuj of Gujarat on

1 point

8 October 2005

26 January 2001

26 December 2004

26 July 2005

Clear selection

36. Which is not a day of equinox?

1 point

21 June

21 March

23 September

All of these

Clear selection

37. Neil Armstrong landed on moon on

1 point

20 July 1969

20 July 1979

21 July 1979

21 July 1869

Clear selection

38. Which is not a correct match?

1 point

Sun - nearest star

Sirius - brightest star

Second nearest star - Alpha centauri

Not a member of Solar system - comet

Clear selection

39. Which statement is not correct regarding Light Year?

1 point

It is used to measure time

Distance between Earth and Sun is 8 light minutes

Distance of Alpha Centauri is about 4.3 light years

150 million kilometres is approximately equal to 8 light minutes

Clear selection

40. The first Indian women in space was

1 point

Rakesh Sharma

Bachendri Pal

Kalpana Chawla

Anandi Gopal Joshi

Clear selection

41. If your age is 13 years, how many times have you gone round the sun?

1 point

Zero

6.5

Clear selection

42. Smoke and fog together in one word can be called

1 point

CFCs

Smog

Foam

Marble cancer

Clear selection

43. Kyoto protocol was

1 point

An agreement among many countries

To reduce emission of greenhouse gases

To prevent to the outbreak of water borne diseases

Both A and B

Clear selection

44. Find incorrect match

1 point

Ganga Action Plan - 1985

National Mission for Clean Ganga (NMCG) - 2016

Namami Gange Programme - 2016

Mangalyaan - launched in 2013

Clear selection

45. Van Mahotsav takes place in

1 point

March

May

July

December

Clear selection

Ques. No. 45-50 (3 marks each)

More than one option may be correct (Tick all correct options)

46. Select biodegradable substance/s.

3 points

Woollen cloth

Aluminium

Plastic bags

Paper bags

47. The correct statement/s is/are

3 points

Salt, sugar, Oil and vinegar all are used as preservatives

In pasteurisation, milk is heated to 70 °C for 15 to 30 minutes, then suddenly chilled

Bacteria and Yeast are helpful for fermentation of rice idlis and dosa butter

Hepatitis and smallpox cannot be prevented by vaccination

48. Select incorrect statement/s

3 points

There are two sperm duct and two oviducts in female

Egg is always single celled & its size ranges from very small as in human females to largest egg which is Ostrich egg

Correct sequence of development : Gamete ---> Zygote ----> Foetus ----> Embryo

Insect hormones help in metamorphosis in insects whereas thyroxine helps in metamorphosis in frogs

49. Check the correct matches

3 points

Cassiopeia - a prominent constellation in southern sky visible during rainy season

Names of Ursa major - Big dipper, Great Bear, Saptarshi

Direction of Earth's rotation - west to east

Study of celestial objects and associated phenomena - astronomy

50. Right meal for adolescent consists of

3 points

Noodles, cake

Rice, vegetables

Dal, chapati

coke, chips

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