Chapter 6
Changes Around Us
1. What is it called to get back the substance with which we start the reaction?
a) The opposite
b) Changes
c) The surroundings
Answer:_ a) The opposite
2. Can a piece of fruit wood be reversed?
a) You can
b) You can’t
c) Both of the above
Answer:_ b) You can’t
3. What process can be used to reverse a picture on a piece of paper?
a) Wipe with a rubber band
b) Drawing with wood pencil
c ) by painting
Answer:_ a) Wipe with a rubber band
4. The Can inflating a balloon reverse that change ?
a)’ Sometimes you can and sometimes you can’t
b) You can’t
c) You can
Answer:_ c) You can
5. What is the English form of the word ‘expansion’?
a) Melting
b) Expansion
c) Changes
Answer:_ b) Expansion
6.What do you do when the snow melts?
a)’ Heated it up
b)’ It cooled down
c) They kept it moderate
Answer:_ a)’ Heated it up
7. Road builders heat a black substance, what is that black substance called?
a) coal
b) Tar
c) Both of the above
Answer:_ b) Tar
8. What is produced after an incense stick burns out?
a) Some ashes
b) you are gone
c) Both of the above
Answer:_ c) Both of the above
9. Can you see the gas produced after an incense stick burns out?
a)’ You can’t
b) You can
c) It’s not either
Answer:_ b) You can
10. What is one of the iron plates of the tools used for digging?
a) currency
b) The ring
c) wooden pipes
Answer:_ b) The ring
11. Can the change be reversed if a clay pot falls and breaks?
a) You can
b) You can’t
c) It’s not either
Answer:_ b) You can’t
12. What is the process of restoring changed objects to their original form?
a) The opposite”
b) Variable
c) It’s not either
Answer:_ a) The opposite
13. What do you think the figure in the picture below is?
b)’ A picture of a burning candle
c) A picture of an extinguished candle
Answer:_ b)’ A picture of a burning candle
14. Can iron be restored to its original form after being waxed?
a) You can
b) You can’t
c) Both of the above
Answer:_ b) You can’t
15. What is the English form of the word ‘compression’?
a) Evaporation
b) Changes
c) Contraction
Answer:_ c) Contraction
16. Can the change to milk curd be reversed?
a) You can
b) You can,t
c) It’s not either
Answer:_ b) You can,t
17. What is the drain attached to the iron plate of an excavator?
a) of bamboo
b) of wood
c) of straw
Answer:_ b) of wood
18. What is the girl in the picture below doing?
a) They are inflating balloons
b) They are blowing balloons
c) None of the above
Answer:_ a) They are inflating balloons
19. What causes the ring on the iron plate of a digging tool to become large?
a) for making in summer
b) for cooling
c) for the diffusion of iron
Answer:_ c) for the diffusion of iron
20. What is the English form of the word ‘melt’?
a) Melting
b\) Changes
c) Expansion
Answer:_ a) Melting
Type by : Pompi Hazarika