We have day and nights on earth because of the Earth's rotation on its axis. Axis is an imaginary line passing through North and South poles of the earth.The Earth takes 24 hours to complete one rotation around its axis.Half the time i.e.for 12 hours one side of the Earth is facing the Sun,in this side there is Day whereas on the other side there is night.
When we look up in the sky during different times of the day, we see that the sun is moving from one direction to the other.It rises in the East in the morning and sets in the west.In reality,the sun is not moving,it is our earth that is rotating around the sun, this rotation causes day and night as explained above.
Click on the video link to watch an explanation for why we have night and day.
In your words, explain why we have day and night.
I like the night because you can sleep. I like the day because you can play. Your mom or dad will tell you to go to bed at 7 or 8 to go to sleep. Dominik
ReplyDeletewe have day and night because we need to sleep and calm down. matthew
ReplyDelete