Advertisements
Advertisements
Question
Fill in the blank:
_____________ discovered the oxygen gas.
Solution
Joseph Priestley discovered the oxygen gas.
APPEARS IN
RELATED QUESTIONS
Give two uses of the following component present in air:
carbon dioxide
How is air useful to water boats?
Give a brief account of the discovery of air and the scientists involved.
What is meant by the term ‘atmosphere’? State the role played by the atmosphere for the survival of mankind.
State the meaning of the term Atmosphere.
Draw a neat labelled diagram for the following experiment.
To demonstrate the burning of sulphur in a jar of oxygen.
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?
List five activities that are possible due to the presence of air.
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement
The ______ makes the windmill rotate.
Explain the following observations very briefly
A firki does not rotate in a closed area.
