What is the rate at which something moves called?

Which scientific term is best defined as an electrically charged atom?

What is a space which is entirely devoid of matter called in scientific terms?

What is the distance between two peaks of a wave called

What is water, in it's solid form, called?

What unit of measurement is one-thousandth of a gram?

What is the irregular and instantaneous motion of air called?

What does splitting a laser light, into two beams, through a silver mirror, make?

What is the unit for measuring pressure?