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प्रश्न
Select natural and man-made matter from the following list:
Wood, plastic, silk, medicines, detergents, coal, water, ceramic, cotton, glass, nylon, fruits.
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उत्तर
Natural matter: Wood, silk, coal, water, fruits, cotton
Man-made matter: Plastic, medicines, detergents, ceramic, glass, nylon.
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संबंधित प्रश्न
Water evaporates only at 100°C.
Give the molecular model for a solid and use it to explain why a solid has a definite volume and a definite shape.
Define interconversion of states of matter.
Fill in the blank
The physical state of a substance, which has a fixed volume but no fixed shape is ...............
Fill in the blank
The temperature at which a liquid boils is called the ................. point of that liquid.
Write whether the following statement is true or false
All solids, on heating, first change to the liquid and then to the gaseous state always.
Name the phenomenon which cause the following change.
Conversion of ice into water.
Complete the statement given below by selecting the correct word.
____ is an example of a crystalline substance.
Fill in the blank with the correct word Given below.
Matter can change from one state to another by the change in ____
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 |
