why is earth rotating?

Answer 1

Almost five billion years ago, our solar system had its beginnings as a vast cloud of dust and gas. The cloud began to collapse, flattening into a giant disk that rotated faster and faster, just as an ice skater spins faster as she brings her arms in. The Sun formed at the center, and the swirling gas and dust in the rest of the spinning disk clumped together to produce the planets, moons, asteroids, and comets. The reason so many objects orbit the Sun in nearly the same plane (called the ecliptic) and in the same direction is that they all formed from this same disk.

While the planets were forming, there was not much peace in our solar system. Clumps of matter of all sizes often collided, and either stuck together or side-swiped each other, knocking off pieces and sending each other spinning. Sometimes the gravity of big objects would capture smaller ones in orbit. This could be one way the planets acquired their moons.

Scientists think that a large object, perhaps the size of Mars, impacted our young planet, knocking out a chunk of material that eventually became our Moon. This collision set Earth spinning at a faster rate.

Answer 2

When the earth formed from the solar nebula, there was local rotational momentum (spinning) in the dust and debris that became the planet. Plus there is a theory that the moon formed when another large planet hit the earth with a glancing blow and the debris formed the moon. The glancing blow could also have imparted the spin to the earth.

Answer 3

Because the material (dust and debris) that the earth formed from was rotating. As it collected together pulled in by the gravitational forces, it began rotating faster - just as an ice skater who is spinning and then pulls in their arms and legs spins faster. This is called conservation of angular momentum.

Answer 4

because the earth is tilted and its called time!!! and i think cus something to do with gravity and because of the earths axis

Answer 5

To get to the other side.