energy from the sun
all of the energy from the sun that reaches the Earth arrived as solar radiation, part of a large collection of energy code the electromagnetic radiation spectrum solar radiation includes visible lights ultraviolet light infrared radio waves x-rays and gamma rays radiation is one way to transfer heat
differences in temperature
you subtract the final temperature from the starting temperature to find the difference. so if something starts at 50 degrees Celsius and finishes at 75 degrees Celsius send the change in temperature is 75 degrees Celsius - 50 degrees Celsius = 225 degrees Celsius.
differences in pressure
a pressure is a force per unit area across a surface.
a difference in pressure across a surface then implies a different in force which can result in an acceleration according to Newtowns second law of motions if there is no additional force to balance it.
