6th Standard Syllabus & Materials
6th Standard
Tamilnadu 6th Standard Tamil இயல் 3 - எல்லாரும் இன்புற - பெயர்ச்சொல் Important Questions And Answers Study Material - QB365 Set B
NEW6th Standard
Tamilnadu 6th Standard Tamil இயல் 3 - எல்லாரும் இன்புற - பெயர்ச்சொல் Important Questions And Answers Study Material - QB365 Set A
NEW6th Standard
Tamilnadu 6th Standard Tamil இயல் 2 - கூடித் தொழில் செய் - சுட்டு எழுத்துகள், வினா எழுத்துகள் Important Questions And Answers Study Material - QB365 Set B
NEW6th Standard
Tamilnadu 6th Standard Tamil இயல் 2 - கூடித் தொழில் செய் - சுட்டு எழுத்துகள், வினா எழுத்துகள் Important Questions And Answers Study Material - QB365 Set A
NEW6th Standard
Tamilnadu 6th Standard Tamil பருவம் 1 - இயல் 1 - மொழி -தமிழ்த்தேன் - இன்பத்தமிழ் Important Questions And Answers Study Material - QB365
NEW6th Standard
Tamilnadu 6th Standard Social Science T3 - குடிமையியல் - உள்ளாட்சி அமைப்பு - ஊரகமும் நகர்ப்புறமும் Important Questions And Answers Study Material - QB365 Set B
Published on: 30/09/2019
Changes Around Us
Download Tamil Nadu 6th 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.
Bursting of fire crackers is a _______change whereas germination of seeds is a ______change. (slow / fast)
2.
Plants convert Carbon-di-oxide and water into starch. This is an example of _____________change. (natural / human made)
3.
Boiling of egg results in_________change. (a reversible / an irreversible)
4.
Magnet attracts iron needle. This is ________change. (a reversible / an irreversible)
5.
In a solution of salt in water, water is the solute.
6.
Digestion of food is a physical change.
7.
Change of New moon to Full moon is human made.
8.
Burning of match stick is a reversible change.
9.
Growing of teeth in an infant is slow change.
10.
Burning of matchstick :_______ change: Rotation of the Earth : Slow change
11.
Dissolving of glucose : reversible change :: Digestion of food: ___________ change.
12.
Curdling of milk : irreversible change :: Formation of clouds : ________change
13.
Inflating a balloon, popping a balloon, fading of wall paint, burning of kerosene
14.
Glowing of a bulb, lighting of a Candle, breaking of a coffee mug, curdling of milk
15.
What is a solution?
16.
Define a slow change.
17.
What kind of a change is associated with decaying of a plants?
18.
What type of changes is associated with germination of a seed? Explain
19.
What happen when paper is burnt? Explain.
20.
When a candle is lit the following changes are observed.
a. Wax melts.
b. Candle keeps burning.
c. The size of the candle decreases.
d. The molten wax solidifies
e. Which of the changes can be reversed? Justify your answer.
21.
Air pollution leading to Acid rain is a
reversible change
fast change
natural change
human made change
22.
Out of the following an example of a desirable change is
rusting
change of seasons
earthquake
flooding
23.
Drying of wet clothes in air is an example of
Chemical change
Undesirable change
irreversible change
physical change
24.
When ice melts to form water, change occurs in its
position
colour
state
composition
1.
( )
slow,fast
2.
( )
natural
3.
( )
an irreversible
4.
( )
a reversible
5.
False - Correct statement: In a solution of salt in water, water is the solvent
6.
False - Correct statement: Digestion of food is an irreversible change
7.
Flase - Correct statement: Change of new moon to full moon is natural
8.
False - Correct statement: Burning of match stick is an irreversible change.
9.
True
10.
Fast
11.
irreversible
12.
reversible
13.
burning of kerosene
Reason : It is a chemical change.
14.
curdling of milk
Reason : It is a chemical change (or) It is a slow change
15.
When solute is dissolved in a solvent it forms a solution.
Solute + Solvent ⟶ Solution
16.
Changes which take place over a long period of time are known as Slow changes.
17.
Plants decaying is a chemical change.
18.
(i) Germination of a seed can take more days. Because, it is a slow change.
(ii) "Changes which take place over a long period of time are known as slow changes".
19.
(i) Burning of paper takes place within a short period of time. So, it is a fast change
(ii) In this process, carbon-di-oxide and water are produced with heat and light energies.
20.
a) melting of wax and
d) Solidification of the molten wax can be reversed.
Burning of candle is a physical / reversible change. That is,
\(\text { Solid wax } \underset{\text { Cooling }}{\stackrel{\text { Heating }}{\rightleftarrows}} \text { molten wax }\)
21.
(d)
human made change
22.
(b)
change of seasons
23.
(d)
physical change
24.
(c)
state
6th Standard Syllabus & Materials
6th Standard
Tamilnadu 6th Standard Social Science T3 - குடிமையியல் - உள்ளாட்சி அமைப்பு - ஊரகமும் நகர்ப்புறமும் Important Questions And Answers Study Material - QB365 Set A
NEW6th Standard
Tamilnadu 6th Standard Social Science T3 - குடிமையியல் - மக்களாட்சி Important Questions And Answers Study Material - QB365 Set B
NEW6th Standard
Tamilnadu 6th Standard Social Science T3 - குடிமையியல் - மக்களாட்சி Important Questions And Answers Study Material - QB365 Set A
NEW6th Standard
Tamilnadu 6th Standard Social Science T3 - புவியியல் - பேரிடரைப் புரிந்து கொள்ளுதல் Important Questions And Answers Study Material - QB365 Set B
Tamilnadu Stateboard 6th Standard Subjects
Tamilnadu Stateboard Standards
