Where can you find convection? by Waldemar Tomala https://padlet.com/valdi_t/jy48boqen4o6 Write where you can observe convection en-us 2017-11-06 20:00:40 UTC 2023-02-14 01:56:41 UTC hello@padlet.com valdi_t https://padlet.com/valdi_t/jy48boqen4o6/wish/204097661 2017-11-06 20:00:40 UTC https://padlet.com/valdi_t/jy48boqen4o6/wish/204097661 valdi_t https://padlet.com/valdi_t/jy48boqen4o6/wish/204097663 2017-11-06 20:00:40 UTC https://padlet.com/valdi_t/jy48boqen4o6/wish/204097663 FIRE - the fire heats up the air, which rises up valdi_t https://padlet.com/valdi_t/jy48boqen4o6/wish/204097666


]]> 2017-11-06 20:00:40 UTC https://padlet.com/valdi_t/jy48boqen4o6/wish/204097666 Water heating xblazkovae https://padlet.com/valdi_t/jy48boqen4o6/wish/208485602 2017-11-19 16:07:13 UTC https://padlet.com/valdi_t/jy48boqen4o6/wish/208485602 Air circulation in the room xblazkovae https://padlet.com/valdi_t/jy48boqen4o6/wish/208485870 2017-11-19 16:09:31 UTC https://padlet.com/valdi_t/jy48boqen4o6/wish/208485870 Air currents in the atmosphere xblazkovae https://padlet.com/valdi_t/jy48boqen4o6/wish/208486140 2017-11-19 16:11:37 UTC https://padlet.com/valdi_t/jy48boqen4o6/wish/208486140 Hadley cell xblazkovae https://padlet.com/valdi_t/jy48boqen4o6/wish/208486383 A large-scale atmospheric convection cell in which air rises at the equator and sinks at medium latitudes, typically about 30° north or south.]]> 2017-11-19 16:13:03 UTC https://padlet.com/valdi_t/jy48boqen4o6/wish/208486383 ninokokilashvili https://padlet.com/valdi_t/jy48boqen4o6/wish/208497144 2017-11-19 17:27:09 UTC https://padlet.com/valdi_t/jy48boqen4o6/wish/208497144 Home experiment xblazkovae https://padlet.com/valdi_t/jy48boqen4o6/wish/208890193 Convection]]> 2017-11-20 20:37:18 UTC https://padlet.com/valdi_t/jy48boqen4o6/wish/208890193 https://padlet.com/valdi_t/jy48boqen4o6/wish/209171854 2017-11-21 16:38:15 UTC https://padlet.com/valdi_t/jy48boqen4o6/wish/209171854 cristinaiulia_a https://padlet.com/valdi_t/jy48boqen4o6/wish/209191285  From ESA  -  What is convection ?]]> 2017-11-21 17:23:32 UTC https://padlet.com/valdi_t/jy48boqen4o6/wish/209191285 cristinaiulia_a https://padlet.com/valdi_t/jy48boqen4o6/wish/209193289 Convection and gravity]]> 2017-11-21 17:28:32 UTC https://padlet.com/valdi_t/jy48boqen4o6/wish/209193289 cristinaiulia_a https://padlet.com/valdi_t/jy48boqen4o6/wish/209197554 The dependence on gravity for convective flow

]]> 2017-11-21 17:40:44 UTC https://padlet.com/valdi_t/jy48boqen4o6/wish/209197554 Convection zone in star https://padlet.com/valdi_t/jy48boqen4o6/wish/210173016 2017-11-26 17:56:34 UTC https://padlet.com/valdi_t/jy48boqen4o6/wish/210173016 Simple example of convection julia_twardowska28 https://padlet.com/valdi_t/jy48boqen4o6/wish/221773655 This simple machine, which my friend Alicja built, will show you how convection looks like. At the end, the candles went out because Alicja extinguished them ;) 
Description below.
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Convection is a process of transferring the heat (connected with the macroscopic movement of matter) in gas, liquid or plasma. Talking about convection we mean only the motion of matter associated with temperature difference, which leads to the transfer of the heat.

To present this phenomenon we have built a windmill model which is made of cardboard and skewers sticks. In addition to this, we will need matches (or a lighter) and a stand for a model.

We tilt wings of the windmill at an angle to the level thanks to the air blast, the windmill rotates around its axis. Under the model, on a stand, we put candles. We notice that the windmill is still. We ingnite the wicks with the matches (the lighter). The windmill starts to spin. Why does it happen?

The windmill motion shows that it is driven by a blast of the air.

The lit candles are heating up the air around them. Its modules are moving faster and became lighter than the air which is around. The heated air rises up and its “blast” moves wings of the windmill. The windmill rotates around its axis.

This phenomenon is called CONVECTION CURRENTS
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