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प्रश्न
Tick the most appropriate answer.
Physical changes are
विकल्प
permanent
periodic
temporary
irreversible
उत्तर
temporary
APPEARS IN
संबंधित प्रश्न
State whether the following is physical or chemical changes.
burning of sugar —
What are man-made changes ?
State one instance where water undergoes a physical change and one in which it undergoes a chemical change.
Change is the law of nature and occurs in our everyday life, at all times and in all places.
Differentiate between the following change with a suitable example.
Natural and man-made change.
Name the following:
The term involved in the change of state from – ‘water to ice’ – which is a physical change.
Select the chemical changes from the following list of changes
Rotting of eggs.
Select the chemical changes from the following list of changes
Butter turning rancid
Select the chemical changes from the following list of changes
Preparation of carbon dioxide from calcium carbonate & dilute hydrochloric acid.
Classify the following changes as physical and chemical changes
A rough piece of wood is sanded and polished resulting in change in texture, Rusting of a iron nail, Painting the grill, Bending a paper clip, Pounding silver into thin plate, Rolling the chappathi dough into thin wire, Occurrence of day and night, eruption of volcano, burning of matchstick, dosa from the batter, blinking of eyelids, occurrence of a thunderstorm, rotation of the earth, formation of eclipses.
| Sr. No. | Physical changes | Chemical changes |
| 1. | ||
| 2. |
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
