Igneous rock
This type of igneous rock forms from lava cooling on Earth’s surface.
What is extrusive rock (or basalt)?
This type of rock often forms in layers and may contain fossils.
What is sedimentary rock
This metamorphic rock forms when limestone is exposed to heat and pressure.
What is marble
This process turns sediment into sedimentary rock.
What is compaction and cementation
This mineral is the hardest on the hardness scale.
What is diamond
Granite forms when magma cools slowly inside the Earth. What type of igneous rock is it?
What is intrusive rock
Sand that is compacted and cemented together forms this rock
What is sandstone
This foliated metamorphic rock is often used for roofing tiles and comes from shale.
What is slate
When any rock melts into magma and then cools, it becomes this type of rock.
What is igneous rock
This mineral is used in pencils and feels slippery to the touch.
What is graphite