Q4. State whether the statements given below are True or False.

(i) Stone is transparent, while glass is opaque.

(ii) A notebook has lustre while eraser does not.

(iii) Chalk dissolves in water.

(iv) A piece of wood floats on water.

(v) Sugar does not dissolve in water.

(vi) Oil mixes with water.

(vii) Sand settles down in water.

(viii) Vinegar dissolves in water.

Answers (3)

(i) False, stone is opaque, while glass is transparent.

(ii) False, neither of them have lustre.

(iii) False, chalk does not dissolve in water rather it makes a suspension.

(iv) True, a piece of wood floats on water.

(v) False, sugar dissolves in water.

(vi) False, oil does not mix with water rather it makes an emulsion.

(vii) True, sand settles down in water.

(viii) True, vinegar gets dissolves in water.

 

Pencil shaving will sink in water? it's true or false

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