Rock Cycle
Volcanic Rock
Igneous Rock
Example of Sedimentary rock
Coal, Limestone, Shale, Conglomerate etc
Example of Mineral
Quartz, Calcite, etc.
Example of Igneous Rock
Pumice, Granite, Basalt etc
Example of Metamorphic Rock
Marble, Quartzite, Gneiss etc.
What is rock cycle?
One type of rock changes into another type.
Through weathering rocks break and then form another type of rock.
Rock forms from Sediment
Sedimentary Rock
Name any two properties of minerals
Luster, hardness, colour, streak
Rocke formed from magma
Igneous Rock
Forms by squeezing and pressure
Sedimentary Rock
Can igneous rock become a metamorphic rock? How?
Yes, through heat and pressure
By weathering and erosion rocks break into ___________
sediments
Everyday use of minerals
Various answers
everyday use of rock
various
everyday use of rock
various
Can metamorphic rock change into another type of metamorphic rock?
Yes, it may stay under earth and get more heat and pressure to form new metamorphic rock.
This type of rock may contain fossils.
Sedimentary
Everyday use of minerals
Various answers.
75% of earth's crust is made up of __________. rock
Sedimentary
Why is rock cycle important?
It tells us how one type of rock can change into another type. If there are only one type of rocks it will not be interesting. Rocks continuously change.
How would you differentiate between gold and pyrite? They are both yellow
They have different properties.
Hardness- gold is soft
Streak- gold gives a yellow streak while pyrite gives a green