What is a barometer?
What is a barometer?
Meter is an instrument used to measure atmospheric pressure it helps forecast the weather by showing whether the pressure is rising, which usually means clear skies or falling with signals rain or storm. Its also used to estimate altitude pressure decreases with height, making it useful in aviation And outdoor activities provide essential for scientific studies and climate and atmosphere existing helping researchers understand low pressure patterns shape global weather
The bar meter should be hung at this level
eye level
What is a glass tube?
Long sealed tube filled with mercury
What represents clear skies?
When pressure is rising
What should you do before using the barometer for the first time?
Set it to the main sea level pressure for your area
What is a mercury reservoir?
A container at the bottom that holds mercury
Where should it be ?
It should be away from Direct , sunlight, heat or air conditioners as sunlight and sudden blast of hot or cold air may affect the reading
What is a mercury column?
The mercury inside the tube that rises and falls with air pressure
What shouldn’t you do when reading the barometer?
Do not take your barometer off the wall in order to read it
What is a scale or graduated Markings?
The air pressure reading (this is usually in millibars or inches of mercury)
What does a barometer help scientist study?
Climate and atmosphere system helping researchers understand whole pressure patterns, shape, global weather
What should you use to hang the barometer?
Use a nail or screw with a small head
What is a vacuum space?
The empty space at the top of the tube called the Torricellian vacuum