Changes around Us

When ice metls to form water, changes occurs in its
1. position
2. colour
3. state
4. composition
Drying of wet clothes in air is an example of
1. chemical change
2. undesirable change
3. irreversible change
4. physical change
Formation of curd from milk is
1. a reversible change
2. a fast change
3. an irreversible change
4. an undesirable change
Out of the following an example of a desirable change is
1. rusting
2. change of seasons
3. earthquake
4. flooding
Air pollution leading to Acid Rain
1. reversible change
2. fast change
3. natural change
4. human made changes
Curdling of milk: irreversible change :: Formation of clouds:_________ change
1. chemical
2. reversible
3. artificial
4. fast
Growth of seed into sampling is___________change.
1. slow
2. chemical
3. reversible
4. undesirable
________is the process in which something becomes different from what it was earlier.
1. classification
2. composition
3. position
4. change
Which of the following is not a man-made change?
1. burning of fuels
2. drying of clothes
3. tearing of paper
4. change of day and night
____________change is a temporary change
1. physical
2. chemical
3. undesirable
4. slow