Slow or Fast Changes

Q. Rolling of chapati and baking of chapati are the changes that:

1. can be reversed.
   

2. cannot be reversed.

3. can be reversed and cannot be reversed, respectively.
4. cannot be reversed and can be reversed, respectively.

Q.

Growth of plant is a ___________ change.

Q. Which among the following is a fast change?

1. Decaying of dead organisms.

2. Conversion of milk to curd

3. Burning of matchstick

4. Germination of a seed

Q.

1.A change occurs during the growth of plants. What type of change it is ?

Q. Egg hatching into a chick is an example of slow change.

1. True
2. False

Q. Evolution is an example of __________ change.

1. natural
2. man-made
3. slow
4. fast

Q.

What are the types of changes based on the speed of the change itself? Give three examples for each type. [5 MARKS]

Q.

Choose the synonym of the word given below:Swift

1. Move

2. Speedy

3. Leisurely

4. Sluggish

Q. Which of the following example can be considered as a fast change?

1. Germination of seed
2. Bursting of crackers
3. Growth of child
4. Cooking of food

Q.

Why is germination an irreversible change?

Q. Pick out the incorrect pair.

1. Growth of plants - irreversible change
2. Rotting of apple - irreversible change
3. Breaking of glass - reversible change
4. Boiling of water - reversible change

Q. Slow and fast changes are relative to each other.

1. True
2. False

Q.

3. Change of bud into flower is a change which can not be reversed. Give four more such examples.

Q. Which of the following change is classified based on the speed?

1. Slow
2. Natural
3. Temporary
4. Man-made

Q. What is meant by LIVING fossil ??

Q.

11. Change of a bud into a flower is a change which cannot be reversed. Give four more such examples.

Q. To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?

Q. Evolution is an example of __________ change.

1. natural
2. man-made
3. slow
4. fast

Q. Sort the following changes in order of slowest to fastest.

1. Growing of tree
2. Curdling of milk
3. Boiling of milk
4. Glowing of bulb

Q. The growth of a human being is a _____ change compared ​to the movement of the minute hand of a clock.​

1. slow
2. fast

Q. Which of the following change can be reversed?

1. Breaking of a glass tumbler
2. Stretching of a rubber band
3. Cooking of food
4. Chopping of onions

Q. To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?

Q. Which among the following is a fast change?

1. Decaying of dead organisms
2. Conversion of milk to curd
3. Germination of a seed
4. Burning of matchstick

Q. Which of the following change is classified based on the speed?

1. Slow
2. Natural
3. Man-made
4. Temporary

Q.

the process of formation of organic compounds from the inorganic compounds in the primitive earth is called-

a)chemical evolution

b)biochemical evolution

c)biological evolution

d)organic evolution

Q. Which among the following is the slowest change?

1. Change of seasons
2. Curdling of milk
3. Drying of clothes
4. Boiling of milk

Q. Identify the correct pairs.

1. The spinning of a top - Fast change
2. Rusting of a bicycle rim - Fast change
3. The bursting of a cracker - Slow change
4. Growth of a child - Slow change