Air Pressure
Imagine dust floating in a beam of sunlight. These specks help us see air movement, even though air itself is invisible.
Air is made of gas particles that constantly move and bump into each other and the walls of the container, creating air pressure.
Since air has weight and takes up space, it always exerts pressure on everything around it.
Think about drinking juice through a straw. When you suck, you remove air, lowering the pressure inside the straw.
The higher air pressure outside pushes the juice up into your mouth.
Fluids, like air and liquids, always move from high to low pressure. This explains why air flows into lower-pressure areas.
The air pressure also helps us breathe. When we inhale, our lungs expand, lowering pressure inside.
Air moves from high to low pressure, so outside air rushes in. When we exhale, pressure increases, pushing air out.
In addition, air pressure influences how we experience weather. Meteorologists use barometers to measure air pressure, which helps them predict weather changes.
Imagine dust floating in a beam of sunlight. These specks help us see air movement, even though air itself is invisible.
Air is made of gas particles that constantly move and bump into each other and the walls of the container, creating air pressure.
Since air has weight and takes up space, it always exerts pressure on everything around it.
Think about drinking juice through a straw. When you suck, you remove air, lowering the pressure inside the straw.
The higher air pressure outside pushes the juice up into your mouth.
Fluids, like air and liquids, always move from high to low pressure. This explains why air flows into lower-pressure areas.
The air pressure also helps us breathe. When we inhale, our lungs expand, lowering pressure inside.
Air moves from high to low pressure, so outside air rushes in. When we exhale, pressure increases, pushing air out.
In addition, air pressure influences how we experience weather. Meteorologists use barometers to measure air pressure, which helps them predict weather changes.