Chapter: Changes Around Us (Worksheet)

CBSE Class 6 - Science

Fill in the blanks

1. Metals generally __________ on heating.

2. A change in which new substance is formed is called __________ change.

3. A black material used by road construction workers for repairing a road is __________ .

4. A change may occur by __________ a substance or by mixing it with some other.

5. Changing state from solid to liquid to gas and back again is a ___________ change.

6. If we bake the roti on a Tawa, we cannot change the baked roti into the ball of dough again. So, baking a roti is an ____________ change.

7. Burning of incense stick is an _________ change.

8. Mixing substances always causes a reversible change. State True or False?

9. Melting is an example of a reversible change. State True or False?

10. Growing of trees is an irreversible change. State True or False?

Answers:

1: expand

2: chemical

3: coal tar

4: heating

5: reversible

6: irreversible

7: chemical

8: False. It can cause an irreversible change.

9: True

10: True

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