Changes

The GUT would involved "quantum gravity," or something that explain what exactly goes on in a singularity (which is what the universe was once, according to the Big Bang theory) and also explain why things happened like they did when the universe was extremely small.

The GUT would involved "quantum gravity," or something that explain what exactly goes on in a singularity (which is what the universe was once, according to the Big Bang theory) and also explain why things happened like they did when the universe was extremely small.

Many things have been proposed for a GUT, more famously "string theory" (which is admittedly little more than extremely sophisticated guessing currently, because we don't have powerful enough machines to test it).  Hopefully when the LHC particle accelerator (Large Hadron Collider) comes online in May, we will know more about the extremely small things in the universe (including the Higgs boson, which might explain why matter has mass), because of course faster speeds equal smaller bits of debris.

Many things have been proposed for a GUT, more famously "string theory" (which is admittedly little more than extremely sophisticated guessing currently, because we don't have powerful enough machines to test it).  Hopefully when the LHC particle accelerator (Large Hadron Collider) comes online in May, we will know more about the extremely small things in the universe (including the Higgs boson, which might explain why matter has mass), because of course faster speeds equal smaller bits of debris.

For grades 4-7 (I skipped grade 5) I went to a private Christian school (First Baptist Christian School, in the Cayman Islands).

For grades 4-7 (I skipped grade 5) I went to a private Christian school (First Baptist Christian School, in the Cayman Islands).