This is my quote that I chose. And what I think it means:
Ever wondered what causes day and night, well here is the explanation!
The Earth spinning causes day and night.
When half the world is facing the sun its day time and on the other side of the world its night.
My understandings at the start were correct and I also made a video about what causes Day and Night.
It takes a full 24 hours for the world to fully complete spinning. 24 hours is also a full day and night.
Here is my video I hope you like it: