* Gravity is a force of attraction: Every object in the universe with mass exerts a gravitational pull on every other object. The more massive an object, the stronger its gravitational pull.
* Earth's massive size: Earth is incredibly massive. Its huge mass creates a strong gravitational field around it.
* Attraction towards the center: Since the Earth's mass is concentrated towards its center, the strongest part of its gravitational field pulls objects towards that center.
Think of it like this:
Imagine Earth as a giant magnet. Everything with mass, like you or a ball, is like a small, weaker magnet. The Earth's strong magnetic pull pulls the weaker magnets towards its center.
Therefore, objects fall towards the center of the Earth because of the Earth's gravitational pull, which is strongest at its center.
