Advertisements
Advertisements
Question
Write true or false
A natural change can also be a desirable change.
Options
True
False
Advertisements
Solution
True
APPEARS IN
RELATED QUESTIONS
Classify the following as chemical or physical change:
Dissolving common salt in water.
What role does energy play in initiating a chemical change ?
Make a list of different types of changes with example.
Define physical change. Give two examples for the above changes.
Match the columns.
| Column A | Column B |
| 1. a change which cannot be easily reversed | a. man-made change |
| 2 a change that repeats itself at regular intervals | b. chemical chang |
| 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 formed | e. irreversible change |
| f . slow change |
Sublimation is classified as a physical change. Why ?
Classify the Following as a Physical Or a Chemical Change.
Making of a Sugar Solution
Given reason:
Burning of paper is a chemical change.
Compare the energy changes involved during a physical and a chemical change.
Classify the following as physical or chemical properties
The composition of a sample of steel is 98% iron, 1.5% carbon and 0.5% other elements.
