4.7 describe the role of convection in everyday phenomena Task 1
· Try the animation
· Extension: what is happening to the particles in the air?
>
When air particles heat up, they move apart. The bottom part of the room of hot air is less dense the top part of the room.
So the hot air rises and creates a circulation, which is convection. Task 2
· Why is Lee tired after cycling to the Sea in the morning?
· Predict what will happen when Lee cycles home in the evening
> Lee is tired after cycling to the sea in the morning because of convection current.
The sun heats up the ground quickly while the sea absorbs and contains a lot of heat energy.
The heat from the ground rises and therefore, the cold air from the sea moves towards the land.
This means Lee is riding against the wind in the morning. When Lee cycles home in the evening, he will have a difficult ride home.
Since the sun is gone, the ground will cool down quickly while the sea still contains hot air.
So hot air will rise from the sea and the wind will blow towards the sea, against Lee. [cid:image001.jpg@01CC6948.F6EBEBC0] 
· Try the animation
· Extension: what is happening to the particles in the air?
>
When air particles heat up, they move apart. The bottom part of the room of hot air is less dense the top part of the room.
So the hot air rises and creates a circulation, which is convection. Task 2
· Why is Lee tired after cycling to the Sea in the morning?
· Predict what will happen when Lee cycles home in the evening
> Lee is tired after cycling to the sea in the morning because of convection current.
The sun heats up the ground quickly while the sea absorbs and contains a lot of heat energy.
The heat from the ground rises and therefore, the cold air from the sea moves towards the land.
This means Lee is riding against the wind in the morning. When Lee cycles home in the evening, he will have a difficult ride home.
Since the sun is gone, the ground will cool down quickly while the sea still contains hot air.
So hot air will rise from the sea and the wind will blow towards the sea, against Lee. [cid:image001.jpg@01CC6948.F6EBEBC0]
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