8th Standard Syllabus & Materials
8th Standard
Tamilnadu 8th Standard கணிதம் இயற்கணிதம் Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard கணிதம் எண்கள் Important Questions And Answers Study Material - QB365 Set B
NEW8th Standard
Tamilnadu 8th Standard கணிதம் எண்கள் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
Tamilnadu 8th Standard Social Science பொருளியல் - பொது மற்றும் தனியார் துறைகள் Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard Social Science குடிமையியல் - நீதித்துறை Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard Social Science குடிமையியல் - பாதுகாப்பு மற்றும் வெளியுறவுக் கொள்கை Important Questions And Answers Study Material - QB365
Published on: 11/12/2020
8th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 5
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.
If the ruler is not displayed in the screen, __________ option is clicked.
View -> ruler
View -> task
File -> save
Edit -> paste
2.
Organism that control insects and pests of plant crops is
bio-pesticides
bio-fertilizers
earthworms
neem leaves
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.
A compass is used for __________
plotting magnetic lines
detection of magnetic field
navigation
All of these
6.
The range of audible frequency for the human ear is
2 Hz to 2000 Hz
20 Hz to 2000 Hz
20 Hz to 20000 Hz
200 Hz to 20000 Hz
7.
During menstruation, the progesterone level is ___________
decreased
increased
ceased
normal
8.
Which one of the following organisms lack muscles and skeleton for movement?
Dog
Snail
Earth worm
Human being
9.
Which of the following is true about oxygen?
Completely burning gas
Partially burning gas
Doesn’t support burning
Supports burning
10.
Conduction is the heat transfer which takes place in a____________.
solid
liquid
gas
All of them
11.
If the area of contact is greater, then the ______ will be greater.
Pressure
Temperature
Friction
Force
12.
The brown colour of a cut apple is due to
rusting
rancidity
browning
fermentation
13.
Which of the following element is named after a scientist?
Americium
Mercury
Nobelium
Neptunium
14.
_________are called as building blocks of life
Cells
nucleus
Cell organelles
tissues
15.
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
16.
The first vascular cryptogams in land plants are ________.
Bryophytes
Pteridophytes
Gymnosperm
Angiosperm
17.
In Haber’s process of producing ammonia ______ is used as a catalyst.
Nitrogen
hydrogen
iron
nickel
18.
The property which allows metals to be hammered into their sheets is ___________
ductility
malleability
conductivity
tensile strength
19.
The centre of a sphere of which the reflecting surface of a spherical mirror is a part is called
pole
centre of curvature
cradius of curvature
aperture
20.
SI unit of temperature is __________
celsius
fahrenheit
kelvin
ampere
1.
(a)
View -> ruler
2.
(a)
bio-pesticides
3.
(a)
acidity
4.
(b)
hydrogen
5.
(d)
All of these
6.
(c)
20 Hz to 20000 Hz
7.
(c)
ceased
8.
(c)
Earth worm
9.
(d)
Supports burning
10.
(a)
solid
11.
(c)
Friction
12.
(c)
browning
13.
(c)
Nobelium
14.
(a)
Cells
15.
(b)
Lower concentration to a region of higher concentration.
16.
(b)
Pteridophytes
17.
(c)
iron
18.
(b)
malleability
19.
(c)
cradius of curvature
20.
(c)
kelvin
8th Standard Syllabus & Materials
8th Standard
Tamilnadu 8th Standard Social Science புவியியல் - புவிப்படங்களைக் கற்றறிதல் Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard Social Science புவியியல் - கண்டங்களை ஆராய்தல் (ஆப்பிரிக்கா, ஆஸ்திரேலியா மற்றும் அண்டார்டிகா) Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard Social Science புவியியல் - தொழிலகங்கள் Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard Social Science வரலாறு - காலங்கள் தோறும் இந்தியப் பெண்களின் நிலை Important Questions And Answers Study Material - QB365
Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
