Fast and Slow Changes

Q. Germination of seeds is a/an ______________.

1. reversible and fast change
2. irreversible and slow change
3. reversible and slow change
4. irreversible and fast change

Q. Stretching of rubber to increase its size is a _________ change.

1. physical
2. natural
3. chemical
4. permanent

Q. Which of the following is an example of reversible change?

1. Making a light mark on a paper with a pencil
2. Molding clay to form a toy
3. Cutting a piece of paper
4. Ripening of fruits

Q. The change in which the substance can be brought back into its original state is called a change.

1. reversible
2. irreversible
3. permanent

Q. The change in which the substance can be brought back into its original state is called a change.

1. irreversible
2. permanent
3. reversible

Q. Define reversible and irreversible change.

Q. Which of the following is an example of reversible change?

1. Making a light mark on a paper with a pencil
2. Ripening of fruits
3. Cutting a piece of paper
4. Molding clay to form a toy

Q. Which of the following is an example of reversible change?

1. Making a light mark on a paper with a pencil
2. Molding clay to form a toy
3. Ripening of fruits
4. Cutting a piece of paper

Q. The change in which the substance can be brought back into its original state is called a change.

1. irreversible
2. reversible
3. permanent

Q.

what is permanent

Q. Stretching of rubber to increase its size is a _________ change.

1. chemical
2. natural
3. permanent
4. physical

Q. The change in which the substance can be brought back into its original state is called a change.

1. permanent
2. reversible
3. irreversible