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प्रश्न
Give a reason for the We need to classify things.
उत्तर
We need to classify things in order to distinguish them. In this way, things can be categorized and can be easily studied.
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संबंधित प्रश्न
Boiling takes place at all temperatures.
Write true or false For the following Statement
The molecules in a substance arc in random motion.
Distinguish between solids, liquids, and gases on the basis of their following properties :
(a) compressibility
(b) fluidity
(c) rigidity
(d) expansion on heating
Fill in the blank
The temperature at which a liquid boils is called the ................. point of that liquid.
Multiple choice question.
The process by which a solid changes into a liquid is called
Multiple choice question.
Which of the following is a property of the liquids?
What are the two main types of matter?
Select natural and man-made matter from the following list:
Wood, plastic, silk, medicines, detergents, coal, water, ceramic, cotton, glass, nylon, fruits.
State the property of the following substance.
Hydrogen sulphide gas has a strong rotten egg odour.
Match the characteristics of the three states of matter in List I with their correct answer from List II.
| List I | List II |
| 1. Are highly rigid and have a definite shape | A: Solids and gases only |
| 2. Have no definite shape | B: Solids only |
| 3. Have definite volume but no definite shape | C: Liquids and gases only |
| 4. Are highly compressible and least rigid | D: Gases only |
| 5. Have no definite volume | E: Solid, liquids and gases |
| 6. Have no definite shape and volume |
F: liquids only |
| 7. Occupy space | G: Solids and liquids only |
| 8. Are not compressible | |
| 9. Are slightly compressible | |
| 10. Have mass |
