Types of Rock
Igneous Rocks
Sedimentary Rocks
Metamorphic Rocks
Rock Trivia
100
This type of rock forms when magma and lava cools and hardens.
Igneous
100
This dark, greenish-black rock is mostly made of the minerals feldspar and pyroxene.
Basalt
100
This type of sedimentary rock can be formed from large folders or small rocks the size of peas.
Conglomerate
100
This metamorphic rock has wavy lines.
Schist
100
Rocks can be broken down, chipped, cracked, or rounded because of this process.
Weathering
200
This type of rock is formed over time when layers are squeezed and stuck together.
Sedimentary
200
This igneous rock forms inside Earth instead of at its surface
Gabbro
200
This type of sedimentary rock forms in oceans or in lakes.
Limestone
200
This metamorphic has bands of light and dark minerals.
Gneiss
200
Rocks are classified based on how they _________.
Form
300
This type of rock has a name meaning "changed rock."
Metamorphic
300
This igneous rock has tiny holes caused by gases escaping from laval as it cools.
Pumice
300
This type of sedimentary rock forms from minerals the size of sand grains.
Sandstone
300
This metamorphic rock is often used to make statues and is used in buildings.
Marble
300
Which type, igneous, sedimentary, or metamorphic, is the easiest rock to break?
Sedimentary
400
Some rocks are formed at high heat, but this type of rock is formed in low heat.
Sedimentary
400
This igneous rock cools extremely quick. When it breaks, sharp edges form.
Obsidian
400
The sediments in this rock are so small that you need a microscope to see them.
Shale
400
This metamorphic rock used to be used to make chalkboards in schools.
Slate
400
Which planets in the solar system are made up of rock?
Mercury, Venus, Mars, and Earth.
500
This type of rock can form from any kind of rock.
Metamorphic
500
This igneous rock is very strong and is therefore used to build buildings.
Granite
500
Some sedimentary rocks have the imprints of shells, bones, or other remains of once-living organisms. Another name for these imprints is...
Fossils
500
This metamorphic rock has a milky color. It can have a gray or pink color.
Quartzite.
500
If igneous, sedimentary, and metamorphic rocks listened to music, what kind would it be?
Rock and Roll