unit review Kade Flashcards

(32 cards)

1
Q

what in the mohs hardness scale

A

a scale used the find the hardness of an object

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2
Q

what is an element

A

a pure substance

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3
Q

what are crystals

A

the building blocks of minerals

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4
Q

what is a mineral

A

an inorganic, naturally occurring solid material

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5
Q

what 5 rules make something a mineral

A
  1. inorganic
  2. naturally occurring
  3. solid
  4. has a fixed chemical formula
    5 has a specific atomic arrangement
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6
Q

what are the 6 crystal systems

A
  1. cubic
  2. tetragonal
  3. hexagonal
  4. orthorhombic
  5. monoclinic
  6. triclinic
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7
Q

what is lustre

A

the shininess of an mineral

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8
Q

what is colour

A

the colour of a mineral

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9
Q

what is streak

A

a streak is the colour of the powdered form of a mineral

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10
Q

what is cleavage

A

if a mineral breaks apart on a flat surface

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11
Q

what is fracture

A

if a mineral breaks apart on a rough surface

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12
Q

what is igneous rock

A

rock that forms when magma or lava cools and solidifies

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13
Q

what is metamorphic rock

A

rock that changes

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14
Q

what is sedimentary

A

rock made up of sediments

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15
Q

what is magma

A

melted rock found under the earths crust

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16
Q

what is lava

A

magma that has surfaced from under the earths crust

17
Q

what is intrusive rock

A

igneous rock that forms under the ground

18
Q

what do you need to change a rock into meta morphic

A

heat and pressure

19
Q

when did Pangea form

20
Q

in what era did rodenia form

21
Q

what is a half life

A

it is when half of the parent material changes

22
Q

what is Gondawana land

A

it is the southern half of Pangea when it spit about 200 million years ago

23
Q

what is laurasia

A

it is the northern half of Pangea when it split about 200 million years ago

24
Q

what is laurasia

A

it is the half of Pangea when it split about 200 million years ago

25
can you determine what mineral it is by its color why or why not
no as a mineral could be many different colors and be the same mineral
26
what is stratification
it is the arrangement of sedimentary rock
27
what is a surface wave
it is the slowest of the three seismic waves and often does the most damage
28
what is a syncline
it is a down fold of a rock layer in sedimentrey rock
29
what is a subduction zone
A subduction zone is a region of the Earth's crust where tectonic plates meet. Tectonic plates are massive pieces of the Earth's crust that interact with each other. The places where these plates meet are called plate boundaries.
30
what is a plate boundary
Earth's outer layer, the crust, is divided into a set of large moving plates. The lines where they meet are called plate boundaries. There are three main types of plate boundary: divergent, convergent and transform. Plates move away from one another at divergent boundaries.
31
what is the theory of plate tectonics
Plate tectonics is the theory that the outer rigid layer of the earth (the lithosphere) is divided into a couple of dozen "plates" that move around across the earth's surface relative to each other, like slabs of ice on a lake.
32
what is a vent
it is an opening in earths crust