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प्रश्न
Which of the following are matter?
Chair, air, love, smell, hate, almonds, thought, cold, lemon water, smell of perfume.
उत्तर
Chair, air, smell, almonds, lemon water and smell of perfume.
Notes
Note: The sense of smell is not matter. However, the smell or odour of a substance is classified as matter. The smell of any substance (say, perfume) can be classified as matter. This is because, perfume is in liquid state inside the bottle. It comes out in the form of tiny droplets. These droplets of perfume are matter and spread out in the atmosphere to create a sense of smell. This smell can be detected by our olfactory system.
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संबंधित प्रश्न
Give reason:
A red ink drop added to small amount of water in a glass turns water red in some time.
Fill in the blank:
All matter is made up of tiny particles called..................
Match the columns.
| (1) iron and gold | (a) molecules are very far apart |
| (2) melting | (b) pure substance |
| (3) intermolecular space | (c) non - metals |
| (4) compound | (d) the space between the molecules |
| (5) gases | (e) change from solid to liquid |
| (f) metals |
Fill in the blank:
The quantity of matter in an object is called its _____
Name the three states of matter and define them.
A solid is a state of matter that has
State two characteristics of matter demonstrated by diffusion.
Define the Liquid and give two examples.
Explain the term ‘interconversion of matter’ with ice as a starting material.
With reference to the liquid state of matter – answer the following
How does the stored energy, have an effect on inter-particles space.
