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Question
Fill in the blank with the appropriate word of the statement given below:
Germination of seeds is considered a __________ change.
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Solution
Germination of seeds is considered a chemical change.
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RELATED QUESTIONS
Fill in the blank.
A new substance is formed in a ............... change.
Match the columns
| column A | coulmn B |
| 1. A change which cannot be easily reversed | a. man-made change |
| 2.A change that repeats itself at regular intervals | b. chemical change |
| 3. A change that is made by humans | c. physical change |
|
4. A change in which the original substance cannot be obtained |
d. periodic change |
| 5. A change where no new substance is formade | e. irreversible change |
| f. slow change |
Write short answer.
Give an example of desirable change which can also be undesirable
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Classify the following as physical or chemical changes :
Breaking of a glass tumbler
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A chemical change in a substance.
Name the following:
The term involved in the change of state from – ‘water to ice’ – which is a physical change.
Name the following.
The product of the chemical change in keeping a polished iron nail exposed to the atmosphere.
If you leave a piece of iron in the open for a few days, it acquires a film of brownish substance, called rust.
Do you think rust is different from iron?
Explain the characteristics of physical change with examples.
