Atmospheric pressure:


                                               Atmospheric pressure is the pressure exerted by the weight of the air in the atmosphere. It's like the air pushing down on everything around us.

 Here are some key points about atmospheric pressure:


Air has weight: 

Even though we can't feel it, air has weight. The weight of all the air in the atmosphere pushes down on everything on Earth's surface.

Pressure changes with altitude: The higher you go, the less air there is above you, so the air pressure decreases. That's why it's harder to breathe at high altitudes.

Atmospheric pressure is measured with a barometer: A barometer is a tool that measures atmospheric pressure. It often uses a column of mercury to show the pressure.

Atmospheric pressure affects weather: Changes in atmospheric pressure can help create weather patterns like high-pressure systems (usually bring clear skies) and low-pressure systems (often bring storms).

Our bodies are adapted to atmospheric pressure: Our bodies are used to the air pressure at sea level. If we go to a place with much lower air pressure, like a high mountain, we might feel some effects like shortness of breath.

Atmospheric pressure is an important force that affects our lives in many ways, even though we might not always notice it!