8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - வினைமுற்று Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - மயங்கொலிகள் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை -பட்டமரம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - இயற்கையை போற்றுவோம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 1 - தமிழ் இன்பம் - ஆழிக்கு இணை Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2-ஈடில்லா இயற்கை - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
Published on: 11/12/2020
8th Standard Science English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Nine
Download Tamil Nadu 8th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
The main component of natural gas is __________
methane
ethane
propane
butane
2.
Acid mixed with base forms ________
salt and water
salt
water
No reaction
3.
Permanent hardness of water is due to the presence of __________
Sulphates and Chlorides
Dust particles
Carbonates and Bicarbonates
Other soluble particles
4.
Which of the following is the working principle of Rockets?
Newton’s first law
Newton’s second law
Newton’s third law
All the above
5.
The shape of the Earth’s magnetic field resembles that of an imaginary __________.
U-shaped magnet
straight conductor carrying current
solenoid coil
bar magnet
6.
Noise is produced by
vibrations with high frequency.
regular vibrations.
regular and periodic vibrations.
irregular and non-periodic vibrations.
7.
In Tux Math, space cadet option is used for_________.
simple addition
division
drawing
multiplication
8.
Many adolescent boys and girls get pimples on face, due to the secretions of _________ gland.
sweat
sebaceous
sweat and sebaceous
None of these
9.
External ear (pinna )is supported by
bone
cartilage
tendon
capsule
10.
In all atoms of an element
the atomic and the mass number are same.
the mass number is same and the atomic number is different
the atomic number is same and the mass number is different
both atomic and mass numbers may vary.
11.
Which of the following is true about oxygen?
Completely burning gas
Partially burning gas
Doesn’t support burning
Supports burning
12.
Which of the following substances will absorb more heat energy?
Solid
Liquid
Gas
All the above
13.
Osmosis is the movement of water molecules from a ______.
Higher concentration to a region of lower concentration.
Lower concentration to a region of higher concentration.
Both of these
None of these
14.
The well-developed sporophytic plant body is seen in
Bryophytes
Pteridophytes
Gymnosperms
Angiosperms
15.
The plant body of algae is called as ______.
stem
thallus
leaf
root
16.
Limestone contains ______ mainly.
Calcium chloride
calcium carbonate
calcium nitrate
calcium sulphate
17.
Which one of metal possess low tensile strength?
Silver
Copper
Zinc
Aluminium
18.
Focal length is equal to half of the
centre of curvature
axis
radius of curvature
None of the above
19.
Which of the following liquids has more viscosity?
Grease
Water
Coconut oil
Ghee
20.
Quantities other than base quantities are called as
supplementary quantities
derived quantities
professional quantities
energy quantities
1.
(a)
methane
2.
(a)
salt and water
3.
(a)
Sulphates and Chlorides
4.
(c)
Newton’s third law
5.
(d)
bar magnet
6.
(d)
irregular and non-periodic vibrations.
7.
(a)
simple addition
8.
(c)
sweat and sebaceous
9.
(b)
cartilage
10.
(c)
the atomic number is same and the mass number is different
11.
(d)
Supports burning
12.
(b)
Liquid
13.
(b)
Lower concentration to a region of higher concentration.
14.
(c)
Gymnosperms
15.
(b)
thallus
16.
(b)
calcium carbonate
17.
(c)
Zinc
18.
(c)
radius of curvature
19.
(a)
Grease
20.
(b)
derived quantities
8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - பாடறிந்து ஒழுகுதல் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - பல்துறைக் கல்வி Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - புத்தியைத் தீட்டு Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - தமிழர் மருத்துவம் ( நேர்காணல்) Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
