Reversible change

Q.

Give one example of reversible change?

Q. Which among the following is a reversible change?

1. Formation of curd
2. Baking bread.
3. Orange juice is frozen to make ice lollies.
4. Chopping off a mango into pieces

Q. If we suspend a weight using a spring, it stretches.

What kind of changes are involved in this?

1. Man-made
2. Reversible
3. Irreversible
4. Man-made and reversible as well

Q. Identify the reversible change(s) among the following:
Change 1: Boiling of water​
Change 2: Burning of wood​
Change 3: Knitting of sweater

1. Both 1 and 2
2. Only 1
3. Only 3
4. Both 1 and 3

Q. Shreya drops a vase of flowers and glass scatters all over the floor. Identify the type of change depicted in the above scenario.

1. Reversible
2. Irreversible
3. Physical
4. Chemical

Q.

Question 5

Give examples to explain the difference between changes that can or cannot be reversed.

Q. Identify the reversible change from the following.​

1. Tearing paper​
2. Folding paper​
3. Cooking of food​
4. Slicing of an apple​

Q.

A change that cannot be reversed is called ___________ change.

Q.

6. A potter working on his wheel, shaped a lump of clay into a pot. He then baked the pot in an oven. Do these two acts lead to the same kind of changes or different? Give your opinion and justify your answer.

Q. An inflated balloon can be brought back to its original state.

1. False
2. True

Q. Pick out the correct words from the help box to complete the given statement.
The dripping of an ice cream is an example of change in _____ and is due to a process called ____ .

Q. The following figure shows ____ change.

1. reversible
2. irreversible
3. both reversible and irreversible
4. periodic change