Term -2 Class:6 Science 3. Changes Around Us - Choose - clickhere

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Term -2 Class:6 Science 3. Changes Around Us

வினாக்களை படித்து , புரிந்துகொண்டு விடைகளை தேர்ந்தெடுக்கவும்:
Understand the Question and choose the Correct answers:
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5 நிமிடத்திற்குள் கவனமாகவும் , விரைவாகவும் விளையாட்டை முடிக்க.
விளையாடி முடித்தபின் , அனைத்தையும் எழுதிப்பார்க்கவும். நன்றி.
உங்கள் முயற்சிக்கு வாழ்த்துகள்.

 

1. Change of milk into curd is a ____________________ change.
   1.   Irreversible
   2.   Reversible
   3.   Fast
   4.   Physical
2. Which one is a reversible change?
   1.   Formation of Clouds
   2.   Bursting of balloon
   3.   Digestion of food
   4.   Burning of wood
3. Which of the following is an irreversible change?
   1.   All
   2.   Curdling of milk
   3.   Idly from batter
   4.   Breaking of glass
4. Melting of ice is an example of _________________ change.
   1.   All
   2.   Reversible
   3.   Slow
   4.   Physical
5. _______________ is an example of physical changes.
   1.   Solution of Sugar
   2.   Digestion of Food
   3.   Burning of Wood
   4.   Rusting of Iron
6. The transition from solid to liquid is called ___________________.
   1.   Melting
   2.   Freezing
   3.   Vaporization
   4.   Sublimation
7. Condensation is change of state from ____________________
   1.   Steam to Water
   2.   Water to Steam
   3.   Water to ice
   4.   Ice to Steam
8. Freezing is a ___________________ change.
   1.   Physical
   2.   Chemical
   3.   Undesirable change
   4.   Irreversible change
9. The transition from water into steam on heating is called ________________.
   1.   Vaporization
   2.   Freezing
   3.   Melting
   4.   Sublimation
10. Sublimation is the change of state from ___________________.
    1.   Solid to gas
    2.   Gas to solid
    3.   Liquid to gas
    4.   Liquid to solid