Air around us

Air around us

By Advik shenoi

Open Ended

what comes to your mind when you think of air?

Open Ended

why do you think that air is Important?

​did you know: fire needs oxygen to burn

What is the atmosphere?​

An atmosphere (from Ancient Greek ἀτμός (atmós) 'vapour, steam', and σφαῖρα (sphaîra) 'sphere') is a layer of gas or layers of gases that envelope a planet, and is held in place by the gravity of the planetary body.

Some text here about the topic of discussion

Multiple Choice

Q. 

Major part of the air is constituted by ?

• Nitrogen

• oxygen

• carbon

• hydrogen

Multiple Choice

During photosynthesis, plants take in

• oxygen

• nitrogen

• Carbon dioxide

• Carbon monoxide

Multiple Choice

Q. 

Envelope of air that surrounds the earth is known as ________

• biosphere

• atmosphere

• hydrospere

Multiple Choice

 

Mountaineers carry ______ cylinders with them .

• carbon dioxide

• oxygen

• hydrogen

• nitrogen

Multiple Choice

Take an empty glass bottle. Turn it upside down. Now ,dip the open mouth of the bottle into a bucket filled with water. now , tilt the bottle slightly. you can see air bubbles in the water. what can we infer from this?

• Air is everywhere . It is present even in the empty bottle .

• Air does not have any colour and it is transparent .

• air has mass

Multiple Choice

plants use oxygen for respiration only during the day

• True

• False

Multiple Choice

fire needs ______ to burn

• carbon dioxide

• oxygen

• nitrogen

• carbon monoxide

​Thank you

​Have a nice day

Poll

Did you understand the PPT?

• yes

• no

Open Ended

Any doubts?? [none\type your doubts]

Open Ended

Feedback