Changes around us Worksheet-7

Changes around us Worksheet-7

 

Multiple-Choice Question:

  1. When water vapour is cooled, it condenses. Is it a chemical change?

(A) Yes                                              (B) No

(C) No, it’s a physical change         (D) Can’t say

 

  1. When candle wax is heated, it melts. What type of change is it?

(A) Irreversible    (B) Reversible      (C) None of these

 

  1. When a match is struck, it burns.

(A) This is a physical and irreversible change

(B) This is a chemical and reversible change

(C) This is a physical and reversible change

(D) This is a chemical and irreversible change

 

  1. When peas are frozen, they become hard. Which type of change is it?

(A) Reversible      (B) Irreversible    (C) None of these

 

  1. When whisked egg is heated, it scrambles.

(A) It’s a reversible change

(B) It’s an irreversible change

(C) None of these

 

  1. When soda is added to water it fizzes, it is a/an:

(A) Reversible change 

(B) Irreversible change

(C) None of these

 

  1. When an ice cream is left in the sun, it melts. It is a/an _______ change.

(A) None of these

(B) Reversible

(C) Irreversible

 

  1. Bursting of balloon is a/an:

(A) None of these

(B) Reversible change

(C) Irreversible change

 

  1. When a candle is lit, the wax burns. It is:

(A) A reversible change

(B) An irreversible change

(C) None of these

 

  1. When iron is exposed to water, it gets rusted.

(A) This is a chemical and reversible change

(B) This is a physical and irreversible change

(C) This is a chemical and irreversible change

(D) This is a physical and reversible change

 

Answer Key:

  1. (C)
  2. (A)
  3. (D)
  4. (A)
  5. (B)
  6. (B)
  7. (C)
  8. (C)
  9. (B)
  10. (C)