Rock Types
Formed from other existing rock
Sedimentary Rocks
3 Categories of Rock
Igneous, Sedimentary and Metamorphic
What is the concept called when rocks break down?
weathering
What happens when rocks melt and solidify?
crystallisation
The TWO terms to describe Intrusive & Extrusive Igneous Rock Formation
melting and cooling
Which type of rock will have fossils?
sedimentary rocks
2 Types of Igneous Rock
Intrusive and Extrusive
Small rocks washed into the sea or blown in by the wind
sediments
Sedimentary rocks get their name from the substance is made of
Sediments
The TWO terms to describe Metamorphic Rock Formation
heat and pressure
Is magma an intrusive or extrusive igneous rock?
Igneous Intrusive Rocks
2 Types of Sedimentary Rocks
Clastic and Chemical
A result of mechanical weathering then lithified by compaction and cement action
sedimentary organic rock
Describe compaction
When sediments are combined together to form sedimentary rocks
The TWO terms to describe Sediment Formation
weathering and erosion
Main characteristic of Igneous Intrusive Rock
large crystals
Three types of metamorphic rocks
Dynamic, Contact and Regional
When chemical precipitation that begins when water travels through rocks and dissolves some of the minerals (Part of sedimentary)
Sedimentary chemical rock
What type of weathering occurs when roots grow through footpaths and driveways forming cracks?
Biological
Hanging rock is formed from?
Intrusive Igneous Rock
What type of rock is Basalt?
igneous rock
These types of rocks can become sediment by weathering
Any type of rock
Identify any three forms that cause erosion?
Water, wind, ice glaciers, plants/animals, chemical processes, oxygen
These rocks usually contain only one mineral, crystals combines to form larger interlocking crystals
metamorphic rock
Which of the following is the order for forming sedimentary rocks?
Sedimentation-Compaction-Cementation