Advertisements
Advertisements
Question
Take a squeezable bottle. Make a hole on the lid and close the bottle tightly. Bring the bottle near your face and press the bottle. What do you feel?
Advertisements
Solution
Air will come rushing out of the bottle.
APPEARS IN
RELATED QUESTIONS
Mention the contribution of the following scientists :
- Antoine Lavoisier
- Robert Boyle
- Joseph Priestley
- Sir W. Ramsay
Match the statements in Column A, with those in Column B.
| Column A | Column B |
| 1. Largest Constituent of air, which dilutes the activity of oxygen. | (a) Oxygen |
| 2. A gas used for filling weather observeation balloons. | (b) Carbonic acid |
| 3. An acid formed by the dissolution of sulphur dioxide gas in water. | (c) Sulphuric acid |
| 4. An acid formed by the dissolution of carbon dioxide in water. | (d) Helium |
| 5. A gas vital for respiration. | (e) Nitrogen |
Why can’t we see air?
Mention five causes of air pollution.
Name two air pollutants which affect our health.
Describe a simple experiment with the help of a diagram to show that Air is highly compressible
Water does not have a ______ but has definite ______ and ______.
What is wind energy?
Make sentences using the given set of words.
Air, wind, motion, called
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
Air is a ______ of some gases.
