Earth Science Flashcards

(43 cards)

1
Q

Mineral

A

A naturally occurring inorganic substance

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2
Q

Lithosphere

A

The crust of the Earth

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3
Q

Magma

A

Hot fluid which is found within the crust of the earth

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4
Q

Sediments

A

matter that is transported with erosion

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5
Q

Lava

A

hot molten that spurts out of volcanoes

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6
Q

Abrasive

A

A substance or material able to polish a surface by rubbing against it

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7
Q

Batholiths

A

A very large igneous intrusion extending to through the Earth’s crust

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8
Q

Intrusive

A

An igneous rock which solidify’s under the Earth’s crust

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9
Q

Extrusive

A

An igneous rock which solidify’s when it spurts out of a volcano when it is airborne or when it has made contact with the ground

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10
Q

Igneous

A

A rock which is solidified from Lava or magma

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11
Q

Lustre

A

How reflective a light is on a mineral

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12
Q

Moh’s scale

A

Moh’s scale is the Hardness of a mineral

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13
Q

Streak

A

The colour of a mineral

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14
Q

Sedimentary rock

A

Sedimentary rocks are rocks which were formed over time and due to erosion went around as particles.

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15
Q

Sandstone

A

Sandstone is formed from sand

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16
Q

Shale

A

Shale is formed from mud

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17
Q

Conglomerate

A

Conglomerate is formed from a combinations of rocks

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18
Q

Mudstone

A

Mudstone is formed from mud

19
Q

Siltstone

A

Siltstone is formed from silt

20
Q

Floodplains

A

Sediments which were deposited beside rivers after a river bank had broke.

21
Q

Moraines

A

Moraines are deposits of Glaciers

22
Q

Glaciers

A

Large bodies of ice

23
Q

Erosion

A

Erosion is the movement of sediments

24
Q

Sedimentary rocks

A

Sedimentary rocks are rocks which were sediments of

rocks which broke down.

25
Mineral ores
rocks which have mineral embedded in them.
26
Mining
extracting natural rocks and minerals from the Earth
27
Environmental
the study of effect on the environment
28
Rehabilitated
restore
29
Impact statement
study of effects on the environment
30
overburden
Waste rock
31
open cut-mining
mining which involves removing the top soil of dirt and soil to find minerals
32
underground mining
Mining underground using shafts
33
Stone Age
the time beginning about two million years ago during which early humans made implements of stone
34
alloy
a mixture of a metal with a non-metal or another metal
35
flint
a fine-grained sedimentary rock which leaves a very sharp edge when broken
36
percussion flaking
a process in which tool stones such as flint or obsidian were struck with harder stones, such as quartzite, to shear large flakes that could be used to make small tools
37
palaeontologists
a scientist who studies fossils
38
relative age
the age of a rock compared with the age of another rock
39
carnivores
animal that eats other animals
40
scavengers
animals that eat dead plant and animal material
41
mould
cavity in a rock that shows the shape of the hard parts of an organism; types of fungi found growing on the surface of foods
42
trace fossils
fossils that provide evidence, such as footprints, that an organism was present when the rock was formed
43
extinct
describes volcanoes that are no longer active. Extinct volcanoes have not erupted for thousands of years and show no sign of future eruption.