it started ok but sorry, it needs some work, i am gonna make it into bullets so you can see the problem (if you haven't noticed them yet(no offense)).
-I didn't know much where to point at the first slide cause there was no auras to select from (as in one aura in the earth surface, another aura in the crust, and another aura in the core)
-In the second slide i couldn't see the end of the things you wrote, and it like froze on that slide (as in that was the end of the game). But do not worry i know that it can be fixed so cheer up and keep going.
So keep it up i am pretty sure that you can do it. By the way if i was rude in any way i am sorry but i was trying to help.