Topic - Physical Changes of Matter
In these Worksheets for Science you will find different questions related to the topic Physical Changes of Matter that will help you to practice the topic more efficiently.
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| Worksheets for Science (Topic - Physical Changes of Matter) |
Multiple Choice Questions
1. Growth of plants and animals is a _______________ change.
(a) natural (b) man-made (c) undesirable
2. The changes that take place after a definite period of time are known as _______________ changes.
(a) non-periodic (b) periodic (c) man-made
3.This is a periodic change. ________________
(a) rusting of iron (b) change of seasons (c) falling of leaves
4. Ripening of fruits is a _______________ change.
(a) desirable (b) undesirable (c) useless
5. Floods and earthquakes are _______________ changes.
(a) useful (b) periodic (c) undesirable
6. Blinking of eyes is a _____________ change.
(a) fast (b) slow (c) man-made
7. Moulding of clay is a _______________ change.
(a) irreversible (b) reversible (b) natural
8. Changing of ice into water is a ______________ change.
(a) physical (b) chemical (c) irreversible
9. A physical change is _______________ .
(a) fast (b) permanent (c) temporary
10. These are volatile liquids. __________
(a) nail polish (b) petrol (c) both a and b
Answers - 1.natural 2.periodic 3.change of seasons 4.desirable 5.undesirable 6.fast 7.reversible 8.physical 9.temporary 10.both a and b
Fill ups
1. An alteration in physical and chemical properties that gives it new properties is called a _______________.
2. The changes that occur by nature are known as _______________ changes.
3. Tearing of paper is a _______________ change.
4. The changes that are useful are known as _______________ changes.
5. The changes that are harmful are known as ______________ changes.
6. Fast changes take place in a _______________ period of time.
7. The changes after which the substance can be brought back into its original form are known as _____________ changes.
8. Evaporation is a ________________ change.
9. The process in which a liquid changes into vapours below its boiling point is known as _______________.
10. The process of evaporation ________________ with increase in humidity.
Answers - 1.change 2.natural 3.non-periodic 4.desirable 5.undesirable 6.short 7.reversible 8.physical 9.evaporation 10.decreases
Write True if the statement is correct and False if the statement is incorrect.
1. Various substances around us are always changing.
2. Changes are of many types.
3. Man-made changes are caused both by man and nature.
4. Phenomenon of day and night is a non-periodic change.
5. Non-periodic changes may occur at any time.
6. Slow changes take place in a short period of time.
7. Formation of fossil fuels is a fast change.
8. The substance can't be brought back into its original form after irreversible changes.
9. Breaking of glass is a reversible change.
10. No new substance is formed in a physical change.
Answers - 1.True 2.True 3.False 4.False 5.True 6.True 7.False 8.True 9.False 10.True
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