15 questions
What is the layer of air around the Earth called?
trophosphere
atmosphere
hemisphere
The air is mainly made up of ........
nitrogen
oxygen
carbon dioxide
The force that pulls you back to Earth is called .......
activity
heaviness
gravity
Water that is floating in the air is called .......
precipitation
water
water vapour
In the top layer of air you find ........ (2)
satellites
areoplanes
International Space Station
Your brain can survive without oxygen for .......
8 minutes
3 minutes
4 minutes
If I climb Mount Everest I must take .........
cell phone
warm clothes
oxygen
Plants use what gas in photosynthesis?
carbon dioxide
oxygen
helium
What gas do animals use from the air?
carbon dioxide
oxygen
helium
What gas in the air is causing global warming?
carbon dioxide
oxygen
helium
A fire uses which gas to burn?
carbon dioxide
oxygen
helium
The layer of air does two things for us on earth ......
keeps the warmth in at night
makes rain
protects us from meteorites
What layer protects us from the sun's harmful rays?
protection layer
ozone layer
atmospheric layer
As we go higher up in the atmosphere the air gets .........
heavier
thinner
colder
What do we call harmful gases in the air?
solution
creation
pollution