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प्रश्न
Fill in the blank.
Water is a matter because it has mass and occupies _______
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उत्तर
Water is a matter because it has mas and occupies space.
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संबंधित प्रश्न
State the general properties of a solid.
Give reason for the following.
Pure substances have fixed melting or boiling points.
Give reason:
A red ink drop added to small amount of water in a glass turns water red in some time.
Match the following
| Column A | Column B |
| (a) Solids | (1) Can flow in all directions. |
| (b) Sublimation | (2) The temperature at which a liquid changes into its gaseous state. |
| (c) Boiling point | (3) Any number of free surfaces. |
| (d) Gases | (4) Gaps between particles. |
| (e) Intermolecular space | ro(5) Change of state fm solid to gas. |
Name the phenomenon which cause the following change:
Disappearance of camphor.
There are large intermolecular gaps in
- water
- iron ball
- common salt
- air
Which of the following is a property of the liquids ?
- they can flow
- they are malleable
- they have a definite shape
- they are rigid
Write your observation and conclusion for the following
When one of the balloons suspended to the metre scale is punctured while other remains inflated ?
Give reasons for the following:
Solids have a definite shape and are highly rigid while gases have to definite shape and are least rigid.
In which of the three states of matter – solids, liquids, or gases is the movement of atoms about their own position. Give a reason for the same.
