Pick a common happening, devolpe an explanation for it, and describe an experiment i could perform to test your explanation

In this question, you need to define a common happenings in your daily life and then try to determine what is the reason of it and conduct an experiment why it happened and how to describe this kind of happenings.
Common happenings : You sleep late at night
Develop a theory : You’re going to think for a way to get sleep early
Experiment to describe : Observe the things that you do and you eat in the morning. Determine those days when you sleep early and you sleep late. Determine the possible causes.

Depotion can i think

Distance covered = speed x timethe distance traveled going against the stream = distance traveled with the stream.therefore it is the speed and the time that are the variables.as he travels the same distance both ways, speed x time is the same for each way.going upstream his speed is 4 kph; going downstream his speed is 6 kph.therefore we have two simultaneous equations: time upstream x 4 = time downstream x 6time upstream + time downstream = 60 minutestherefore we have the equation: time upstream = 6/10 hour, time downstream therefore = 4/10 hour.distance traveled at 4km/hr in 6/10 hour = 24/10 = 2.4km.check: distance traveled at 6km/hr in 4/10 hour = 24/10 = 2.4km.