This is a very broad question, ill list some things and hopefully you can research them some. (Oh and try to find statistics, that really impresses people)
-Tectonic plates
-Plants/animals (past or present)
-Oceans/Land
-Volcanoes/earthquakes
-Natural disasters
-Humans
-Sun/moon
-Energy
-Canyons/mountains
-Sky/clouds/rain/snow
-Tides
-Rain forest/ocean/tundra/desert
Contrary to popular belief, the Earth is very slowwwwly rolling through space like a bowling ball on a large track. You don't get squashed because magic. Science has yet to determine if we will ever hit the "pins."
it is part of a vast solar system and relies on a star (the Sun) to sustain life
it's tides are effected by its only moon
we have gravity, but can't fully explain it
Ocean, atmosphere, land, etc.
Some general things about it for geo!
