This mind map on the top is a mind map that I have created in BrainPOP. I made a mind map about Gravity. A long time ago, famous scientists like Sir Lsaac Newton knew that Gravity is all about Mass and Distance. For mass, Massive planets/objects exert a stronger pull than less massive objects. Mass is also about the amount of stuff in a object and the weight. The weight is the force exert an object mass by gravity. For distance, objects that are far apart exert less gravitational force on each other than objects that are close together. Albert Einstein found out according to
Einstein’s theory of general relativity, Massive objects actually bends space and time. Changing onto another topic, at the moon, an apple weighs one-sixth as much as it does on Earth. Astronauts can jump six times high on the moon as they at Earth. They are both have one-sixth differences at Earth and Moon because the moon is only one-sixth the size of the Earth. There is also a thing called tides. Tides are when moon’s gravity pulls at the Earth, causing tides.