A gas is a state of matter that has particles with energy that move very fast because there is a lot of space between them.

Which material produces static charge when rubbed?

On a cold day, when the air temperature is 0°c, you empty your lungs and take a deep breath, filling your lungs with 4.2 l of air. if you hold your breath until the temperature of the air in your lungs reaches 37°c, what is the volume of the air in your lungs at that point, assuming the pressure does not change?

How is the gravitational force related to the distance between two objects?