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प्रश्न
With whom should I pair up?
| Group A | Group B | ||
| 1 | Air | a | Excretion |
| 2 | Water | b | Scattering of light |
| 3 | Soil | c | Plasticity |
उत्तर
| Group A | Group B | ||
| 1 | Air | b | Scattering of light |
| 2 | Water | a | Excretion |
| 3 | Soil | c | Plasticity |
संबंधित प्रश्न
Describe a simple experiment with the help of a diagram to show that Air exerts pressure
Draw a neat labelled diagram for the following experiment.
To prove that oxygen is non-combustible, but supports combustion.
Draw a neat labelled diagram for the following experiment.
To study the presence of carbon dioxide in air.
Draw a neat labelled diagram for the following experiment.
To prepare oxygen in the laboratory from hydrogen peroxide and a catalyst.
Mention two uses of air.
List five activities that are possible due to the presence of air.
Match the following:
| 1. | Layer of air | a. | Hand fan |
| 2. | Electrical energy | b. | 21% |
| 3. | Nitrogen | c. | Windmill |
| 4. | Oxygen | d. | Atmosphere |
| 5. | Palm Trees | e. | 78% |
In the boxes of Column, I the letters of some words got jumbled. Arrange them in proper form in the boxes given in Column II
| Column I | Column II | ||
| (a) | DILLMWIN | (a) | |
| (b) | YNOGXE | (b) | |
| (c) | MESKO | (c) | |
| (d) | TUDS | (d) | |
Make sentences using the given set of words.
Air, wind, motion, called
Paheli kept some water in a beaker for heating. She observed that tiny bubbles appeared before the water started to boil. She boiled the water for about 5 minutes and filled it in a bottle up to the brim and kept the bottle air tight till it cooled down to room temperature.
Do you think tiny bubbles will appear on heating the water taken out from the bottle? Justify your answer.
