Rocks
This rock is generally formed from the compaction and cementation of sediments.
What is a sedimentary rock.
The hardest known mineral.
What is diamond.
When an oceanic plate meets a continental plate.
What is subduction.
The main composition of the outer core.
Alfred Wegener’s theory, that all of the continents were once a single landmass called Pangea is now known as this.
What is continental drift.
This rock forms from the cooling and solidification of lava or magma.
What is an igneous rock.
NOT reliable characteristic of mineral identification.
What is color.
Rise in the asthenosphere and spread out beneath the lithosphere
What is convection currents.
The outside layer of the Earth, as well as the thinnest.
What is the crust.
Harry Hammond Hess proposed his theory of:
What is sea-floor spreading.
These rocks are changed as a result of exposure to intense heat and/or pressure.
What is metamorphic rocks.
The overall shine of a mineral, metallic or non-metallic.
What is luster.
When two plates of oceanic crust meet, or when an oceanic plate meets a continental plate, one plate is subducted beneath the other forming a trench.
What is convergent boundary.
This layer of the Earth is ball shaped layer in the middle of the Earth.
What is the core.
Evidence from these land features help support the idea of Pangea.
What is mountain ranges.
Rocks on the surface are broken into smaller pieces by wind, water, and ice, this is known as
What is weathering and erosion.
Minerals break in random, irregular shapes.
What is fracture.
A place where two plates slip past each other, moving in opposite directions (frequent Earthquakes)
What is transform boundary.
The rocks that are mainly found in the mantle.
What is semi-solid rocks.
The largest tectonic plate on Earth.
What is the Pacific Plate.
Rocks have their grains arranged in parallel layers or bands.
What is foliated.
The hardness of glass on the Mohs scale.
What is 5.5.
When two plates move apart.
What is divergent boundary.
P-waves vs. S-waves:
The wave that moves faster.
What is P-waves.
The mid-ocean ridge is is an example of this type of plate boundary.
What is a divergent plate boundary.