Igneous, sedimentary and metamorphic Flashcards
Why are sedimentary rocks valuable?
For fossil fuels and building construction
What’s the most common rock on earth?
Basalt
Why don’t we use igneous rocks for fossil fuels?
Igneous rocks are highly flammable
What is the only rock that floats?
Humus
What is heating the core of the earth?
Decaying uranium gears the core and melts rock
What are intrusive rocks?
Igneous rock inside the earth
What are extrusive rocks?
Igneous rocks on the earth
Slow cooling rate will produce
Big crystals
Fast cooling rate will provide
Small crystals
What size crystals do Intrusive rocks have?
Big crystals
What size crystals do extrusive rocks have?
Small crystals
What happens when rain water combines with CaCO3?
It creates carbonic acid
What does carbonic acid do to limestone?
It dissolves the rock
The process if dissolving rock is called?
Dissolution
What is Archimedes principle and what is it used for ?
An object in water will displace it’s exact volume, used to find volume and density
What is the common name for oxidation?
Rust
When rocks get tumbled down a stream and hit one another this is called?
Abrasion
Is magma extrusive or intrusive?
Intrusive
Is lava extrusive or intrusive?
Extrusive
The earths crust is mainly composed of this rock
Granite
What type of rock would we be discussing foliation and what is it?
Metamorphic , and when rocks melts and the minerals settle out into layers
What is the real word for bubble?
Effervescence
This type of topography is a function of dissolution
Karst
What type of sedimentary rock would form from evaporating sea water?
Gypsum
