Rock Cycle + tectonic theory
Name the three types of rocks
Sedimentary, metamorphic, igneous
What direction do plates at convergent plate boundaries move in?
Towards each other
How are igneous rocks formed?
Molten rock cooling
How are sedimentary rocks formed?
Erose, compaction and cementation
How are metamorphic rocks formed?
What are the 3 key pieces of evidence for tectonic plate theory?
Identical fossils found across oceans, continents fit together like a puzzle (pangaea), earthquakes and volcanoes occuring at plate boundaries
What direction do plates at divergent plate boundaries move in?
Away from each other
Name an example of an igneous rock
Basalt or other example
Name an example of a sedimentary rock
Limestone, shale, sandstone
Name an example of an metamorphic rock
Quartzite
What is the main idea of the rock cycle?
Rocks are constantly morphing and changing, moving from one type of rock to the next in the 'rock cycle.'
What direction do plates at tranform plate boundaries move in?
They slide past each other
Name an Indigenous use of an igneous rock
Basalt - axe heads
What are the building blocks of rocks?
Minerals
How does a metamorphic rock become an igneous rock?
By melting under earth's crust, and cooling again to become a new rock.
Why are there some volcanoes that are not on plate boundaries?
Hot spots
What land forms occur at transform plate boundaries?
Fault lines, cracks in earth's crust.
What does intrusive rock formation mean?
When molten rock cools quickly, and small, sometimes indistinguishable crystals form within the rock.
Name an Indigenous use of an sedimentary rock
Sandstone - grinding stone
Name an Indigenous use of an metamorphic rock
Quartzite - cutting tools
Name a place that experiences high volcanic and earthquake activity due to tectonic boundaries.
Japan, Hawaii
What land forms occur at convergent plate boundaries?
Mountains
How does an igneous rock become a sedimentary rock?
Erosion and compaction over many years.
How does a sedimentary rock become a metamorphic rock?
Exposure to hot, mineral rich fluid, high temperatures or extreme pressure resulting in physical and chemical change.
What does foliated rock mean?
Minerals line up in planes, the rock has visible layers.