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The Air Around Us...-.-
Transcript of The Air Around Us...-.-
~Slightly more soluble in water than oxygen
~Denser than air
~Very soluble with sodium solution
~Extinguishes a glowing splinter
~Burning splinter extinguishes
~Blue litmus paper turns red(carbon is an acidic gas)
~Lime water turns cloudy
~Red hydrogen carbonate indicator turns yellow
THE AIR AROUND US!!
Effect of air pollution on human beings&their surroundings...
design by Dóri Sirály for Prezi
Properties of Oxygen...
~Slightly soluble in water
~Same density as water
~Not soluble with sodium solution
~Relights a glowing splinter
~Burning splinter burns brightly
~No change on moist litmus paper
~No change on lime water
~No change on hydrogen carbonate indicater
The Air around us!!
Oxygen is needed for respiration...
~Respiration is a process by which our body obtains & uses oxygen to oxidise food for the production of energy.
~Living things use oxygen & gives out carbon during respiration.
~Combustion is a chemical process.
~Oxygen,heat&fuel are needed for combustion.
Oxygen also is needed for combustion...
Air Pollutant causes...
Dust... Carbon dioxide Pesticides Smoke
Poisonous gases Chemical substances
Example of pollutant include :
So,let us not
defile our air!!
<-What is this??