ROck Flashcards
How are igneous rock formed?
Igneous rocks are formed from red hot melted rock from below the Earth’s surface
How are sedimentary rock formed?
Sedimentary rocks are formed from when small pieces of worn off other rocks become stuck together
How are metamorphic rocks formed?
Metamorphic rocks are formed from rocks that have been changed by heat and pressure within the earth.
Define weathering
Rock is broken down into smaller pieces
Define erosion
The broken role material is transported from one place to another
Define melting
The solid rock is heated, forming magma
Define crystallisation
When the magma becomes solid
Define Metamorphosis
When the rock is changed by intense heat and/or pressure
Define geology
Earth’s physical structure and subtance, its history, and the processes that act on it.
How are rocks classified into three main groups?
Rocks are classified into three main groups based on their formation processes
Define fossils
Fossils are the remains or trace of any once-living thing from a past geological age.
Where are mineral ores found?
Mineral ores are normally found deep below the surface or up to close to the surface
What is open-cut mining
Open-cut mining is when mineral ores are close to the surface
What is underground mining?
Underground mining if mineral ores are deep below the surface
Why is it important to recycle metals?
It is important to recycle metals because it reduces land clearing and habitat destruction
