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 with Answer Key 2020 - 2021 Part - 6
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.
Wildlife Protection Act was implemented in ________
1986
1972
1973
1971
2.
Organism that control insects and pests of plant crops is
bio-pesticides
bio-fertilizers
earthworms
neem leaves
3.
Sodium hydroxide is a ________
acid
base
oxide
alkali
4.
Mangalyaan was sent to ________
Moon
Mars
Venus
Mercury
5.
Sound waves travel very fast in
air
metals
vacuum
liquids
6.
___________ are the chemical substances, secreted by endocrine glands.
Hormones
Enzymes
Proteins
Fatty acids
7.
__________ joints are immovable.
Shoulder and arm
Knee and joint
Upper jaw and skull
Lower jaw and upper jaw
8.
Solvay process is a method to manufacture
lime water
aerated water
distilled water
sodium carbonate
9.
Which of the following substances will absorb more heat energy?
Solid
Liquid
Gas
All the above
10.
Normal temperature of the human body is between
98.4°F and 99.6°F
98.40F and 98.60F
97.4°F and 98.6°F
97.6°F and 99.60F
11.
Mirrors which magnify the object placed close to them.
Convex mirror
Concave mirror
Plane mirror
ellipsoid mirror
12.
Enzymes and yeasts are called
catalysts
bio catalysts
chemical catalysts
physical catalysts
13.
First generation computer has_________
Microprocessor
Integrated circuits
Artificial Intelligence
Vaccum tubes
14.
The erythrocyte is placed in _________ solution which has lesser concentration of solutes and greater concentration of water than in the cytoplasm.
Hypotonic
Hypertonic
Neutral
Acidic
15.
An example for colonial form of algae is
Oscillatoria
Nostac
Volvox
Chlorella
16.
Which of the following factor induces electrolysis?
Heat
light
electricity
catalysis
17.
The property which allows metals to be hammered into their sheets is ___________
ductility
malleability
conductivity
tensile strength
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.
Closeness of two or more measured values is called as ______
accuracy
precision
error
approximation
1.
(b)
1972
2.
(a)
bio-pesticides
3.
(b)
base
4.
(b)
Mars
5.
(b)
metals
6.
(a)
Hormones
7.
(c)
Upper jaw and skull
8.
(d)
sodium carbonate
9.
(b)
Liquid
10.
(b)
98.40F and 98.60F
11.
(b)
Concave mirror
12.
(b)
bio catalysts
13.
(d)
Vaccum tubes
14.
(a)
Hypotonic
15.
(c)
Volvox
16.
(c)
electricity
17.
(b)
malleability
18.
(c)
radius of curvature
19.
(a)
Grease
20.
(b)
precision
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
