Gravity Facts

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  • Gravity is an invisible force that occurs between two objects.
  • The reason things stay on the Earth’s surface is because of the gravitational pull toward the Earth’s center.
  • Gravity is also the reason the Earth spins around the sun.
  • The bigger the object’s mass the more gravity it will have, and the smaller the mass of the object the less gravity.
  • Another thing that affects how much gravity pulls between two objects is the distance between them. The closer the two objects are, the stronger the gravitational pull.
  • Gravity can cause health problems such as bone loss, muscle atrophy, and fluid shifts.
  • Gravity guides the growth of plants and other vegetation.
  • Gravity makes stars burn by squeezing their matter together.
  • Black holes have the strongest gravitational pull in the entire Universe.
  • Sir Issac Newton discovered gravity about 300 years ago. The story is that Newton saw an apple fall out of a tree. When this happened he realized there was a force that made it occur, and he called it gravity.