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प्रश्न
State whether the following is physical or chemical changes.
glowing of a bulb -
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उत्तर
physical change,
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संबंधित प्रश्न
Choose the most appropriate answer.
Rising and setting of the sun at a given place is a
Melting of solid (wax) is a physical change.
Write true or false
Burning of paper and formation of curd are reversible changes.
Give two examples of periodic changes.
Classify the following as a physical or a chemical change.
Boiling of water
Classify the Following as a Physical Or a Chemical Change.
Formation of Clouds
Read the paragraph and note down the various types of changes it mentions.
It was nearing six o'clock in the evening. The sun was setting. A breeze was blowing. Leaves on the tree were shaking. Sahil was sitting in the courtyard, rolling balls of wet soil, and shaping them into various toys. Then he felt hungry and went into the house. Mother made a dough from wheat flour and fried purees. While eating hot purees, his attention was drawn outside the window. It had started raining. There was lightning, too. Sahil was enjoying his dinner in the dim light.
Select the chemical changes from the following list of changes
Rotting of eggs.
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. |
______ is the Universal Solvent.
