Select Board & Class
why do mountaineers carry oxygen cylinders with them ?
how the animals live in the soil breath?
how will you show that air contains water vapour?
why do bubbles come out of a lump of soil when it is in water?
hw is the balance of oxygen and carbon dioxide is maintained in the atmosphere?
how does dust particles in air help in causing rain?
Why does a lump of cotton wool shrink in water?
List five activities that are possible due to the presence of air.
how is the oxygen in the atmosphere replaced?
Have you seen vapour trail produced by a high flying aeroplane? What can be a possible explaination for this?
why don't we feel the pressure exerted by atmosthere?
why during an incident of fire, one is advised to wrap a woollen blanket over the burning object ?????????
what are bad effects of a mobile phone on our body?
What is the source of rain water?
Which gas has the highest percentage in Air ?
Air is a mixture and its composition keeps on changing from one place to another.justify your a answer with the help of two examples
1) Why do traffic policeman wear masks at crowded crossroads??
2) How do plants and animals maintain the balance of oxygen and CO2 in the air ( or in theatmosphere)???
why the transparent glass of windows if not wiped off regularly appears hazy
Why are Paheli and Boojho so s-t-u-p-i-d?
how do modern industrial chimneys help to reduce air pollution?
Air contains Nitrogen and Oxygen.How will you prove it.
write two uses of windmill
Why do you think air becomes thinner higher up?
Why does a liquid rise in the dropper when we release the bulb?
Mention any six uses of air.
How will you show that air supports burning ????????????????????
What is ozone layer?????????
why do we feel suffocated on a busy road with lot of traffic
does nitrogen support burning?
which of the gases present in the air a)most b)least soluble in water?
How do plants and animals help each other in exchange of gases in the atmosphere?
what are the uses of nitrogen
1) What is the suspended carbon particles present in air?
2) Which gas is produced after burning?
3)____________ and _______________ are the two components of air that causes the rusting of iron.
Hot Questions : Thinks and answer : (Lesson : 16)
1) Can you think of one observation in your daily life which shows the presence of water vapour in the air?
2) Is it good to sleep under a tree a) during the day, b) at night? Give reasons.
3) People living in a certain region have a high incidence of skin cancer. Can you identify one possible cause for this?
4) Why do you think air becomes thinner higher up?(Hint: think of which force holds the atmosphere to the earth)
5) An aquarium owner, on a rather cold day. Put a heater in his aquarium, which made the water warm, but not hot. He thought the fish would like that. However, all his fish died. What could be the reason for this?
How can you show that an empty glass is really not empty but fill with air
what is stomata?
1) People living in acertain region have a high incidence of skin cancer can you identify one possible cause for this?
2) An aquarium owner, on a rather cold day, put a heater in his aquarium, which made the water warm but not hot. He thought the fish would like that however all his fish died. What could be the reason for this?
What is inert gas ?
which gas supports burning?
Name the component of air which does not support burning.
what dangers will have to face if the proportions of oxygen and nitrogen in the undergo toa change?
how do modern industrial chimneys help to reduces air pollution?
plants take carbondioxide instead of oxygen
what are the main compounds of air? what are toxic gases in air? how they are formed?
Name any four gases present in air?Also explain them?
What is the difference between breathing in and respiration?
An aquarium owner, on a rather cold day, put a heater in his aquarium, which made the water warm, but not hot.he thought the fish would like that. However, all is fish died. What could be the reason for this?
Some animals live under the soil so how do they breath? does the soil help them to breath?
Will the tiny air bubbles seen before the water actually boils,also appear if we do this activity by reheating boiled water kept in an air tight bottle?
How will you show that air dissolve in water
What is ozone layer?
why it is warm inside a sack of wheat?
I have to give a speech on stephen hawking tommorow(28-2-13) !who ever will give it to me I will give him 1 thumbs up
What is Humidity?
which quantity describes the amount of water vapour in the air??
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Syllabus
why do mountaineers carry oxygen cylinders with them ?
how the animals live in the soil breath?
how will you show that air contains water vapour?
why do bubbles come out of a lump of soil when it is in water?
hw is the balance of oxygen and carbon dioxide is maintained in the atmosphere?
how does dust particles in air help in causing rain?
Why does a lump of cotton wool shrink in water?
List five activities that are possible due to the presence of air.
how is the oxygen in the atmosphere replaced?
Have you seen vapour trail produced by a high flying aeroplane? What can be a possible explaination for this?
why don't we feel the pressure exerted by atmosthere?
why during an incident of fire, one is advised to wrap a woollen blanket over the burning object ?????????
what are bad effects of a mobile phone on our body?
What is the source of rain water?
Which gas has the highest percentage in Air ?
Air is a mixture and its composition keeps on changing from one place to another.justify your a answer with the help of two examples
1) Why do traffic policeman wear masks at crowded crossroads??
2) How do plants and animals maintain the balance of oxygen and CO2 in the air ( or in theatmosphere)???
why the transparent glass of windows if not wiped off regularly appears hazy
Why are Paheli and Boojho so s-t-u-p-i-d?
how do modern industrial chimneys help to reduce air pollution?
Air contains Nitrogen and Oxygen.How will you prove it.
write two uses of windmill
Why do you think air becomes thinner higher up?
Why does a liquid rise in the dropper when we release the bulb?
Mention any six uses of air.
How will you show that air supports burning ????????????????????
What is ozone layer?????????
why do we feel suffocated on a busy road with lot of traffic
(a) consume oxygen from air
(b) put back carbon dioxide in the air.
does nitrogen support burning?
which of the gases present in the air a)most b)least soluble in water?
How do plants and animals help each other in exchange of gases in the atmosphere?
what are the uses of nitrogen
1) What is the suspended carbon particles present in air?
2) Which gas is produced after burning?
3)____________ and _______________ are the two components of air that causes the rusting of iron.
Hot Questions : Thinks and answer : (Lesson : 16)
1) Can you think of one observation in your daily life which shows the presence of water vapour in the air?
2) Is it good to sleep under a tree a) during the day, b) at night? Give reasons.
3) People living in a certain region have a high incidence of skin cancer. Can you identify one possible cause for this?
4) Why do you think air becomes thinner higher up?(Hint: think of which force holds the atmosphere to the earth)
5) An aquarium owner, on a rather cold day. Put a heater in his aquarium, which made the water warm, but not hot. He thought the fish would like that. However, all his fish died. What could be the reason for this?
How can you show that an empty glass is really not empty but fill with air
what is stomata?
1) People living in acertain region have a high incidence of skin cancer can you identify one possible cause for this?
2) An aquarium owner, on a rather cold day, put a heater in his aquarium, which made the water warm but not hot. He thought the fish would like that however all his fish died. What could be the reason for this?
What is inert gas ?
which gas supports burning?
Name the component of air which does not support burning.
SEVERAL MUSICAL INSTRUMENTS. THE FLUTE
IS ONE SUCH INSTRUMENT.
NAME OTHER ???
what dangers will have to face if the proportions of oxygen and nitrogen in the undergo toa change?
how do modern industrial chimneys help to reduces air pollution?
plants take carbondioxide instead of oxygen
what are the main compounds of air? what are toxic gases in air? how they are formed?
Name any four gases present in air?Also explain them?
What is the difference between breathing in and respiration?
An aquarium owner, on a rather cold day, put a heater in his aquarium, which made the water warm, but not hot.he thought the fish would like that. However, all is fish died. What could be the reason for this?
Some animals live under the soil so how do they breath? does the soil help them to breath?
Will the tiny air bubbles seen before the water actually boils,also appear if we do this activity by reheating boiled water kept in an air tight bottle?
A. using solar powered vehicles B. auto rickshaws that run on CNG C. everyone travelling in their own petrol cars D. people using public transport like buses and trains
How will you show that air dissolve in water
What is ozone layer?
why it is warm inside a sack of wheat?
I have to give a speech on stephen hawking tommorow(28-2-13) !who ever will give it to me I will give him 1 thumbs up
What is Humidity?
which quantity describes the amount of water vapour in the air??