Advertisements
Advertisements
Question
Classify the following as a physical or a chemical change.
Melting of wax
Solution
Physical change
APPEARS IN
RELATED QUESTIONS
Fill in the blank.
An earthquake is 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 true or false for the statement
Decomposition of leaves is a fast change.
Fill in the blank
Changes that occur in nature are called ______
What will you take into account while identifying the following?
A chemical change in a substance.
Give a reason why
Freezing of water is a reversible change while burning of a candle – an irreversible change.
Select the chemical changes from the following list of changes
Change of seasons
A change in which matter undergoes a change but the total mass of the substance is unaltered is a ______ change.
When solute is dissolved in a solvent it forms a solution.
Explain the characteristics of physical change with examples.
