EXERCISES
26
VERY SHORT-ANSWER QUESTIONS : Answer in one-word
1. Name the cause that changes temperature of a body.
2. Mention one change caused by force/pressure.
3. Name one irreversible change.
4. Is dissolution of sugar in water a physical or chemical change ?
5. Is the statement. "all physical changes are reversible" correct? If so, give an example to support your
answer.
SHORT-ANSWER QUESTIONS : Answer in 10-15 words
1. In what ways does a candle change during burning ?
2. How do stirring and heating affect the dissolution of common salt in water ?
3. A potter makes clay pots. These pots are dried and then baked. Identify the reversible and irreversib
changes that take place in the process.
4. Why is the ripening of a fruit considered a chemical change?
5. Mention two characteristics of a chemical change.
Answers
Answered by
6
Yaar itna long question kon deta hai...... .
Similar questions