A rotation is an object making a complete turn on its axis. It's kind of a fancier word for spin. The earth rotates fully once every 24 hours. It rotates on an axis. An axis is an imaginary pole or line that a sphere rotates around. The earth rotates on its axis on a tilt. This causes seasons, but we'll go into that later.
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Latitude lines are imaginary lines that run east to west across the globe. They measure how many degrees north and south of the equator something is located. Longitude lines are imaginary lines that run north to south across the globe. They measure how many degrees east or west of the prime meridian. Latitude and longitude together make up a grid.
The equator is an imaginary line running around the earth, dividing the Northern and Southern Hemispheres. It's like the prime meridian of latitudes, or vice versa.
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But I'm confused! Why do planets orbit? Why can't they just stay in place?
Planets orbit because they were always moving in the first place. If an object is in motion, it will keep moving until a force stops it. If there was no sun, Earth would move in a straight line, but since there is a sun, Earth is attracted to it because of the gravity pulling Earth towards it. While Earth just wants to keep moving, the sun is pulling planets towards it.
But how did planets move in the first place?
Bits of rock broke off from the big rock thing and it went like swoosh and kept moving.
Planets orbit because they were always moving in the first place. If an object is in motion, it will keep moving until a force stops it. If there was no sun, Earth would move in a straight line, but since there is a sun, Earth is attracted to it because of the gravity pulling Earth towards it. While Earth just wants to keep moving, the sun is pulling planets towards it.
But how did planets move in the first place?
Bits of rock broke off from the big rock thing and it went like swoosh and kept moving.