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To summarize, the theory of conservation of mass explains, how mass cannot be destroyed, nor can it be created. It always has to come from somewhere, or go somewhere.

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The Big Bang theory explains how everything in the universe came to be.

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What is the conservation of mass theory?

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What is the conservation of mass theory?

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The theory of conservation of mass explains that mass cannot and will not be crated, nor will it be destroyed by a chemical reaction.

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take a look at the gif to the right, what do you see? what do you observe? whats happening?  That's right,  it's the water cycle. The water cycle is a great example of the conservation of mass. Although, i wouldn't really say you could test this in your house, so lets look at this easy example: take an ice cube and set it in a bowl, it might take a while but if you come back in about ten minutes, what do you see happened to the ice cube, it got smaller and there's water surrounding it right? notice, the ice didn't go anywhere, it simply became water. This water, will eventually evaporate as in the gif to the right or get drunken etc.

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the big bang theory describes how everything in the universe was created. The theory itself depicts a big explosion extending outwards that originated from a "single hot mass." This explosion was where everything around you, everything made of mass, was created. The big bang began very hot and dense, but as matter began to extend outwards it because less hot and less dense. From this point forward, matter began to form, and then gravity etc.

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The big bang theory describes how everything currently in the universe was created. The theory itself depicts about 13.7 billion years ago, a "single, hot chaotic mass" until,

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According to CK-12, "This law states that matter cannot be created or destroyed. Even when matter goes through a physical or chemical change, the total mass of matter always remains the same." this means that no matter what, or what FORM more rather, matter will always be finite, because like i said, you cant make it or destroy it. When making or destroying things you are really just changing the chemical makeup of that thing, sometimes it becomes something of the same form of matter, sometimes it changes to another form of matter completely. either way it is and always will be, still here.

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What do you mean "the very beginning of everything currently in the universe"? AUDIO vvv

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According to CK-12 "They discovered that it is not 0 K, but 3K" this was a crucial discovery made in 1964 which was a big help to make the big bang theory increasingly widely accepted. These two scientists who performed this experiment proved there to be left over heat/radiation in the universe from the big bang.