The Day is longer / The night is shorter
How to find the altitude of the noon sun if the date is not the eDescribes how to complete diagram 2 on the activity. Equinox. (Step one - find the difference in latitude between your location and the vertical ray. Step two - subtract that difference from 90 to find the angle of the noon sun at your location (90 - difference in latitude from VR = noon sun altitude)).
"Since the Sun rays are coming from this side, the terminator is perpendicular to the Sun's rays and I am going to simply shade this in and that is the part of the Earth that is in darkness. So everything over here on this side will be experiencing night time"