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 - Six
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.
Deforestation means ______
cleaning of forest
to grow plants
to look after plants
None of these.
2.
The main component of natural gas is __________
methane
ethane
propane
butane
3.
Magnesium hydroxides are used for treating_______
acidity
head pain
teeth decay
None of these
4.
The gas collected at the cathode on electrolysis of water is
oxygen
hydrogen
nitrogen
carbon dioxide
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.
Sound waves travel very fast in
air
metals
vacuum
liquids
7.
Many adolescent boys and girls get pimples on face, due to the secretions of _________ gland.
sweat
sebaceous
sweat and sebaceous
None of these
8.
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.
9.
Aerated water contains
air
oxygen
carbon dioxide
nitrogen
10.
The process of converting a liquid into a solid is called_________.
sublimation
condensation
freezing
deposition
11.
_________is a ball-shaped bacteria.
Bacilli
Spinilla
Cocci
Vibrio
12.
Pen drive is _____device.
Output
Input
Storage
Connecting cable
13.
The process of air passing in and out the lungs is called ___________.
Inhalation
Exhalation
Breathing
None of these
14.
Floridian starch is a reserve food material of
Chloroplyceae
Phaeophyceae
Rhodophyceae
Cyanophyceae
15.
Micro organisms are measured in ______.
cm
mm
micron
meter
16.
Brine is a concentrated solution of ______.
Sodium sulphate
sodium chloride
calcium chloride
sodium bromide
17.
Symbol of Mercury is
Ag
Hg
Au
Pb
18.
The imaginary line passing through the centre of curvature and pole of a spherical mirror is called
centre of curvature
pole
principal axis
radius curvature
19.
Unit of pressure is
pascal
Nm–2
poise
Both (a) & (b)
20.
Which one the following systems of unit is the British System of unit?
CGS
MKS
FPS
SI
1.
(a)
cleaning of forest
2.
(a)
methane
3.
(a)
acidity
4.
(b)
hydrogen
5.
(d)
bar magnet
6.
(b)
metals
7.
(c)
sweat and sebaceous
8.
(c)
the atomic number is same and the mass number is different
9.
(c)
carbon dioxide
10.
(c)
freezing
11.
(c)
Cocci
12.
(c)
Storage
13.
(c)
Breathing
14.
(c)
Rhodophyceae
15.
(c)
micron
16.
(b)
sodium chloride
17.
(b)
Hg
18.
(c)
principal axis
19.
(d)
Both (a) & (b)
20.
(c)
FPS
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
