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प्रश्न
Give two examples for the following :
Substances that are rigid and not compressible.
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उत्तर
Glass, stone, pen.
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संबंधित प्रश्न
Write your observation and conclusion for the following:
When few marbles are put in a glass half-filled with water.
Define Intermolecular space.
Write true or false for each statement. Rewrite the false statement correctly.
Solids and liquids can flow.
Match the following columns
| Column A | Column B | ||
| A. | A molecule is composed of | i. | does not exist free in nature. |
| B. | Ice, water and water vapour | ii. | can vibrate only up to about `10^-10`m from their mean position. |
| C. | An atom | iii. | atoms. |
| D. | Gases | iv. | are the three states of water. |
| E. | The molecules of a solid | v. | occupy space |
What is volume?
Name the smallest particle from which matter is made up.
Define the Atom.
Give reason :
When a teaspoon of sugar is added to half a glass of water and stirred, the water level in the glass does not rise.
Write a scientific reason.
Hydrogen is combustible, oxygen helps combustion, but water helps to extinguish fire.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
