obsidian black stone made up of stone&water
SEDIMENTARY:
formed from natural forces (wind, heat, cold, glaciers)
made up of pieces of rock, pressure formed
METAMORPHIC
- starts out as igneous/sedimentary
- heat and pressure that changes this rock
Earth is made up of crust,
mantle, outer core, inner core
some minerals
are called geodes
rocks and minerals
are all around us
(batteries, sidewalk, countertop, food)
IGNEOUS:
formed from magma, then lava, then cooled
