Because the earth is on an axis and that axis is tilted as it spins around the sun.
It’s actually pretty simple as long as you understand two basic concepts.
1- The earth goes around the sun (no secrets there, of course)
2- The earth is on an axis that is *tilted*.
To understand all of this, you don’t really even need to see any videos or diagrams. Just grab any ball and walk in a circle around a source of light. Look at the shadow. By the shadow, I mean look at the side of the object illuminated by the light and the side that’s left unlighted The bigger the object, the more obvious it will all be. Just remember that you need an object (preferably a ball) that has a line that divides it perfectly in half to function as the equator. Spin that ball as you walk around and (*key point here*) remember to make sure that the ball isn’t spinning straight up and down. It has to be on an angle.
Just do it and you’ll have no more confusion.
Latest Answers