ignous rocks
what are all igneous rocks made of?
magma
what rocks would you use for building a house?
limestone and sandstone
The Greeks used this rock for coulombs
marble
how are igneous rocks made?
cooled magma
what is the most famous volcano in Japan?
Mt fuji
what rock is made when lava cools too quickly?
basalt
this rock is made of sand
sandstone
this rock used to be pure quarts
quartzite
how are sedimentary rocks made?
when sediments cement together
what is the volcano that destroyed Pompei?
mt vesuvius
we use this rock for our countertops what is it?
granite
what rock has pebbles sticking out of it?
Breccia
this rock is the most common metamorphic rock
gneiss
how are metamorphic rocks made?
heat and pressure
this volcano erupted in the 80's
mt st helens
what rock has a composition between granite and gabbo?
diorite
you can find fossils in this rock
fossiliferous limestone
you can see minerals in this rock without a high-power hand lens
schist
did weathering or erosion make the Grand Canyon?
erosion
what national park has a supervolcano
Yellowstone
what igneous rock is sharper than surgical steel (it's in Minecraft)
obsidian
we use this rock to write
chalk
this rock is super durable
hornfels
how is limestone made?
erosion
this volcano made the loudest sound ever when it erupted
Krakatoa