The big bang, does this sentence make sense?

It makes sense, but I'm afraid it isn't correct. It would be more accurate to say that the universe began with a singularity, from which developed a small universe full of very high temperature energy. As the universe expanded and cooled, this energy turned, in part, into matter.

Just to make sure that you understand, a singularity is a mathematical point, without any size.

It wasn't an explosion, and it was energy rather than matter.

As we know it, it was a sudden and drastic inflationary event of a singularity. We do not know the origin of the singularity or what caused it to expand which is likely why he/she did not teach you more about it.

After it's expansion there was pure energy ... and the lighter elements formed almost immediately (hydrogen, helium, and lithium) from high velocity collisions of energy particles. Over time those elements coalesced to form stars. Within the stars, all of the rest of the elements were formed and then spread through out the universe when some of the stars reached the end of their life cycle and exploded scattering the heavier elements. These heavier elements led to planet formation in planetary systems that formed much later around new stars.

The reason it's hard to make sense of is that we don't know exactly what happened ... only that it DID happen.

No, your statement demonstrates the common misconception that there was something somewhere in space that broke apart into bits.

No. There was no body that exploded, sending matter in all directions, no. That would imply a center to the universe, and a bubble of matter expanding outwards into the void. That is totally incorrect: there is no center of the universe; everywhere in the universe is and always has been filled everywhere with matter/energy, and there is no void into which the matter is streaming. The Big Bang was(is) NOT an explosion. The BB is an expansion of already-filled space.

The BB is nothing more than the expansion of space itself which continues to this day. It is not a theory of the origins of that expansion.

("The big bang, does this sentence make sense? ...")

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I'm not a physicist, astronomer, or cosmologist but here's what I believe:

According to Einstein's General Theory of Relativity, there was a mathematical event that occurred in the far distant past which lead to the formation of a singularity (a point like object with zero size and volume at infinite density (mass / volume) at which both space and time are infinitely distorted, and where the laws of physics breakdown.

Understand though, that at the time of the singularity, there wasn't any matter or laws of physics; there was just pure energy and exceedingly high temperature. Matter came about only after the Universe (inflation) was launched and had time to expand and cool and undergo various phase-transitions. Thus, matter in the Universe (as we currently understand it) is not the same as infinite energy of the big bang singularity

Einstein's equation: E = mc^2 says that there is an equivalence between "energy" and "matter".

I would describe the singularity as: an emerging propriety of zero size and volume, with infinite density and energy where the laws of physics breakdown completely. The singularity under went a sudden and rapid expansion [NOT EXPLOSION] in four dimensions of space-time.

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See: big bang

http://cde.nwc.edu/SCI2108/course_documents/cosmol...

See: Big Bang ...

http://cti.itc.virginia.edu/~meg3c/200R/Projects/f...

See: Frequently Asked Questions in Cosmology ...

http://www.astro.ucla.edu/~wright/cosmology_faq.ht...

Best regards

That's totally unscientific way of saying it dude...

Look , a singularity is a point in space ( just a POINT, it doesn't occupy space , has no dimensions) where the mass is squeezed in...

it's infinitely dense ( density = mass/ volume , here volume being zero) and time stops....

It's commonly believed to be inside a black hole....

No because it neither broke apart of exploded