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Windy day

 

Air is all around us, we can feel it and see the effects it has on objects in our environment. Air is made up of particles (very small pieces), just like other materials.

Air is a mixture of gases which are vital for photosynthesis and respiration.

 

High speed train

 

Battling against the wind uses lots of energy, so vehicle designers use shapes which reduce wind resistance, like this high-speed train.

 

Box under parachute

 

Air can also be a very useful material. Without a parachute, objects would accelerate to the ground and smash.

 

Let's have a closer look at the air around us.

10 questions