Appliances that work on air pressure: 1. Syringe Explanation: When the piston of the syringe is pulled, the volume in it increases, while the number of air molecules is still the same, resulting the low air pressure in the syringe and automatically, the air pressure outside is higher if compared to that of the air pressure in the syringe. the higher air pressure outside will force the liquid that you wish to suck to enter the syringe. 2. Siphon (for cleaning water in the aquarium) 3. Spraying pump 4. Straw All of the appliances work according to the same principle.
The device to measure air pressure is called a barometer.it is bassically a small ball that can be easily pushed up by the wind.
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aneroid barometer
aneroid barometer
air
It is AIR PRESSURE!!
An air pressure measuring device is called a Barometer.
"barometer"
"barometer"
"barometer"
Mercury Barometer
An instrument for measuring atmospheric pressure, used especially in weather forecasting.
A+ Radiosonde
A+ Radiosonde
A+ Radiosonde
aneroid barometer
aneroid barometer
aneroid barometer