Spacetime, Black Holes and Wormholes

Since the time of the Incas, there have been theories of space and time existing as a single continuum. This "Spacetime", as scientists call it, is the result of countless mathematical theories. Spacetime works like this; imagine a stretched piece of suspended fabric; this represents Spacetime. If you place a marble on the fabric to represent a planet, the fabric will create a small divot under the marble. This is a major principle of Spacetime. If you place smaller marbles near the large "planet" marble, they will fall towards the planet because of the divot in the fabric. This is how gravity on Earth works. The Earth creates a divot in Spacetime, attracting smaller bodies. But, because of the fact that space and time are a single fabric, the Earth not only distorts space, but also time. This is why astronauts in space are slightly younger than what they would have been on Earth. Time works much like gravity; where it is distorted, it will flow faster. Spacetime is also a principle behind wormholes. Imagine a piece of paper with "point A" on one end and "point B" on the other. Instead of traveling across the paper between points, a wormhole is a way of folding the paper in half, and jumping from A to B. A black hole is created when something with a huge amount of mass, such as a star, collapses into a single point; Thus creating so much gravity that it rips a hole straight through the Spacetime. This creates infinite gravity, which should be impossible. Some scientists believe that this black hole is a gateway into another parallel universe, while others believe it is a form of wormhole. I hope you enjoyed! I'm only eleven :P