7th Standard Syllabus & Materials
7th Standard
Tamilnadu 7th Standard Maths T2 - தகவல் செயலாக்கம் Important Questions And Answers Study Material - QB365 Set B
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - தகவல் செயலாக்கம் Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - வடிவியல் Important Questions And Answers Study Material - QB365 Set C
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - வடிவியல் Important Questions And Answers Study Material - QB365 Set B
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - வடிவியல் Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - இயற்கணிதம் Important Questions And Answers Study Material - QB365 Set C
Published on: 08/08/2019
Download Tamil Nadu 7th 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 SI unit of speed is __________
m/s2
m/s
km/h
m2/s
2.
The sub-atomic particle which revolves around the nucleus is _______.
Atom
Neutron
Electron
Proton
3.
From the given v-t graph it can be inferred that the object is _______.
in uniform motion
at rest
in non uniform motion
moving with uniform acceleration
4.
Asexual reproduction in yeast is _________.
Spore formation
Fragmentation
Pollination
Budding
5.
Which one of the following is an example for a metal?
Iron
Oxygen
Helium
Water
6.
What is 'Photoshop'?
7.
Name two disease which can be prevented by vaccination.
8.
Describe a stamen.
9.
Name the constituents of water.
10.
What is the distance between the earth and proxima centauri star?
11.
Define - Atom.
12.
What is Raster Graphics?
13.
Define – pollination.
14.
What is the density of gold?
15.
Name some of the derived quantities.
16.
Volume
17.
Speed of ship
18.
Cholera
19.
Sucker
20.
Video Story
21.
The nucleus has ________ and ________.
22.
If the velocity of an object increases with respect to time, then the object is said to be in_______ acceleration.
23.
I am green colour box with garbage. I am ________
24.
The smallest particle of matter that can exist by itself is ______.
25.
Density of mercury is ________.
26.
A ball of iron floats in mercury.
27.
The region covered by the boundary of the plane figure is called its volume
28.
Leaves of Aloe vera are fleshy and store water.
29.
The transfer of pollen to the stigma is known as pollination.
30.
Assertion: An atom is electrically neutral.
Reason: Atoms have equal number of protons and electrons.
a) Both assertion and reason are true and reason is the correct explanation of assertion.
b) Both assertion and reason are true, but reason is not the correct explanation of assertion.
c) Assertion is true but reason is false.
d) Assertion is false but reason is true.
31.
Assertion: Oxygen is a compound.
Reason: Oxygen cannot be broken down into anything simpler
a. Both assertion and reason are true and reason is the correct explanation of assertion.
b. Both assertion and reason are true, but reason is not the correct explanation of assertion.
c. Assertion is true but reason is false.
d. Assertion is false but reason is true.
32.
Assertion: Wood floats in water.
Reason: Water is a transparent liquid
a. Both assertion and reason are true and reason is the correct explanation of assertion.
b. Both assertion and reason are true, but reason is not the correct explanation of assertion.
c. Assertion is true but reason is false.
d. Assertion is false but reason is true.
33.
Write about any three Communicable diseases in details.
34.
Differentiate metals and non metals.
35.
The volume of water is a measuring cylinder is 50 ml. When a stone is tied to a string is immersed in the water, the water level rises to 83 ml. Find the volume of the stone.
1.
(b)
m/s
2.
(c)
Electron
3.
(d)
moving with uniform acceleration
4.
(d)
Budding
5.
(a)
Iron
6.
Photoshop is a software used to beautify and edit the photos. It is used by Photographers.
7.
Polio, Tuberculosis.
8.
(i) A stamen consists of two parts.
(ii) A stalk called filament and a lobe called anther. The anther contains pollen grains.
9.
Hydrogen and Oxygen.
10.
4.22 light years.
11.
An atom is the smallest particle of a chemical element that retains its chemical properties.
12.
Raster graphics are created on the basis of pixels. When we enlarge this types of photos, we could see the pictures as rectangular layers or grids.
13.
The process by which pollen grains reach stigma is called as pollination.
14.
Density of gold is 19,300 kg/m3
15.
Area, Volume, Speed, Electric charge and Density.
16.
m3
17.
Knot
18.
Cramps in legs
19.
Chrysanthemum
20.
Microsoft Photostory
21.
( )
protons and neutrons
22.
( )
positive
23.
( )
dustbin
24.
( )
atom
25.
( )
13,600 kg/m3
26.
True
27.
False
Correct Statement: The region covered by the boundary of the plane figure is called its area.
28.
True
29.
True
30.
a) Both assertion and reason are true and reason is the correct explanation of assertion.
31.
d. Assertion is false but reason is true.
32.
b. Both assertion and reason are true, but reason is not the correct explanation of assertion.
33.
Tuberculosis:
(i) Causative agent : Mycobacterium tuberculae bacteria.
(ii) Transmission : Spread from one person to another through air by spitting and prolonged contact with patient.
(iii) Symptoms : Fever, weight loss, chronic cough, bloody spitting and difficulty in breathing
(iv) Prevention and treatment : BCG vaccinations. Giving special attention to the patient. Regular medication like DOT
Chicken pox:
(i) Causative agent : varicella zoster virus.
(ii) Transmission : Spread through air and contact with infected person.
(iii) Symptoms : Appearance of rashes on the whole body, fever, headache and tiredness.
(iv) Prevention and treatment : Chicken pox vaccine is the best way to prevent. Special attention should be given to infected person
Robies:
(i) Causative agent: Virus (rhabdo virus)
(ii) Transmission : By the bite of the infected dog, cat, etc.
(iii) Symptoms: Hydrophobia, fever for 2-12 weeks and exaggerations
(iv) Prevention and treatment : Fatality can be prevented by timely vaccination before onset of symptoms.
34.
| Metals | Non-metals |
| (i) Lustrous and have shiny surface. | (i) Non-lustrous and have non-shiny surface. |
| (ii) They are generally hard. | (ii) They are generally Soft. |
| (iii) They are ductile. | (iii) They are non-ductile. |
| (iv) Good conductors of heat and electricity. | (iv) Bad conductors of heat and electricity. |
| (v) Metals are making sound when struck.(Sonorous) | (v) Non-metals do not make sound when struck. (Non-sonorous) |
35.
Volume of water V1 = 50 ml
Volume of water V2 = 83 ml
Volume of the stone (V) = V2 - V1
= 83 - 50
= 33 ml
1ml = 1 cm3
33ml = 33 x 1cm3
Volume of the stone = 33 cm3
7th Standard Syllabus & Materials
7th Standard
Tamilnadu 7th Standard Maths T2 - இயற்கணிதம் Important Questions And Answers Study Material - QB365 Set B
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - இயற்கணிதம் Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - அளவைகள் Important Questions And Answers Study Material - QB365 Set C
NEW7th Standard
Tamilnadu 7th Standard Maths T2 - அளவைகள் Important Questions And Answers Study Material - QB365 Set B
Tamilnadu Stateboard 7th Standard Subjects
Tamilnadu Stateboard Standards
