Types of rocks
What does Ignite mean?
catch fire or cause to catch fire.
This is molten rock found below the earth's surface.
magma
The final 2 processes that turn sediments into sedimentary rocks?
compacting and cementing
What type of rock is obsidian
Description:Black glassy/smooth rock
igneous
To see a minerals streak, what do you need to do?
rub it on a hard, rough, usually white surface
What is the root word for Igneous
Ignite
Sandstone can form when layers of sand are compacted and _________________.
Cemented
What does weathering mean?
to break a rock
What type of rock is marble
(made out of multiple rocks including limestone)
metamorphic rock
Luster describes what property of a mineral?
the way light is reflected off the surface
What are igneous rocks made out of?
Molten magma/lava
tiny pieces of rock, sand, shells, etc. is called what
Sediment
When sediments go under compacting and cementing processes they become___________
sedimentary rocks
What type of rock is sandstone
(visible flat layers and)
Sedimentary
The scale of hardness in a mineral goes from 1 to what number being the hardest?
10
How do metamorphic rocks form
when other rocks are affected by a lot of heat and pressures
_________ and ____________ turn sedimentary rocks into metamorphic rocks.
heat & pressure
When igneous, metamorphic and sedimentary rocks go under weathering and eroding they become_________________
sediment
What type of rock is granite
(formed from magma)
igneous
Are minerals organic or not?
They are inorganic
Name three things sedimentary rocks have in them
Shells
Fossils
Sand
Sediment
When metamorphic and igneous rocks go under melting they turn into__________
magma
The processes that turn metamorphic rocks into sediments
weathering and erosion
what type of rock is gneiss
(Made out of granite)
Metamorphic
Name three of the five characteristics of minerals
inorganic, occur naturally, fixed chemical structure, solid, crystal form