3. Classify the following as physical change or chemical change.
(b) Glowing of an electric bulb
Which of the following are physical changes and which are chemical changes?
(a) Burning of a magnesium wire
(b) Freezing of water
(c) Rusting of iron
(d) Glowing of an electric bulb
Classify the glowing of an electric bulb is physical or chemical change.
(B) Classify the following as physical or chemical change.
13) Baking bread
7) Souring of milk
Classify the following as physical or chemical change.
Dissolving sugar in water