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W

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I think that the blue area is the low pressure area and it transferring water into the high pressure area and it makes a mini tornado because the low pressured area is pushing water towards the high pressured area. This is so we can learn how the low pressured water enters the high pressured water.

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The two water bottles that were strapped  together could be related to pressure or natural disasters like a tornado. With the colours,it could represent higher or lower temperatures. The candle could represent sunlight

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It relates to the cyclones and tornadoes with the suction of the air.

I think the flame is sucking the the air inside the water down to fuel but since in never reaches it  creates that spinning motion.

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The

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The demonstration shows the low pressure system how it works. The low pressure system occurs when the centre of a region of air is lower than the surroundings, often defined as close isobars. The air gets sucked in, in a ‘cyclone’, or a depression. The air goes up, forming clouds and rain, which are commonly related to low pressure systems.

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I think relates to year 7 geography because it helps to explain air masses and how they work. The whirlpool is like a high pressure system.

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Do with pressure

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The blue section of the bottle most likely represents the cold air masses. This cold air mass is more dense than the warm air mass (red) and so the air is dropping into the warm air. This can also represent how a hurricane or storm works, because as water is dropping on to the ground, high humidity causes a huge amount of water to evaporate. Evaporation takes energy, and so the evaporated water vapour is significantly warmer than the water that is “raining” down.

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The colours represented the temperature and the red was under the heat of the candle and the water represented the air so it probably was a demonstration about tornados/cyclones.

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The pressure created in the bottle created by the flame made the air shoot through the valve. As this was happening room was being created by the lack of air, but this room was quickly filled with water.

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Spinning the bottle makes a water vortex that looks like a tornado. The water is spinning around the centre of the vortex due to centripetal force (an inward force directing an object or fluid such as water towards the centre of its circular path).The tornado like occurrence can be found in nature in the movements of high and low pressure troughs usually near large bodies of water.

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I think because one bottle is red and the other is blue , it's indicating the temperature of the bottles , e.g. Red means hot / warm , Blue means cool/cold.

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How you think the demonstration is related to Year 7 Geography!