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year 8 science > 9.2 > Flashcards

9.2 Flashcards

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Biology 101 flashcards
1
Q

rocks are made out of minerals

A

minerals

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2
Q

the out most layer of the earth

A

lithosphere

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3
Q

a super hot liquid found in the middle of the earth

A

magma

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4
Q

material broken down by wind and water

A

sediments

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5
Q

elements found in the earths crust

A

native elements

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6
Q

geometrically shaped substance made up of atoms

A

crystals

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7
Q

appearance of a mineral caused by the way it reflects

A

lustre

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8
Q

colors of a mineral as a fine powder

A

streak

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9
Q

a measure of how difficult it is to scratch the surface of a solid mineral

A

hardness

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10
Q

water that desoves rocks

A

Erovsion

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11
Q

rocks made from moverment

A

Clastic

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12
Q

chmical that have been moved and fromed in to cristals

A

Chemical

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13
Q

formed by dead things

A

Organic

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14
Q

are form by something that was liveing and now it is not

A

Fossils

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15
Q

rocks that from from the cooling of lava

A

ignous rocks

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16
Q

rocks that coll arbarve the eaths surface

A

exstrustie rocks

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17
Q

a pale rock that forms when frothy lava cools in the air

A

pumice

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18
Q

a dark, igneous rock formed from gassy lava that cools quickly

A

scoria

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19
Q

a property of a material or substance that easily scratches another

A

abrasive

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20
Q

a dark, igneous rock with small crystals formed by fast cooling of hot lava.

A

basolt

21
Q

a black, glassy rock that breaks into pieces with smooth shell-like surfaces

A

obseden

22
Q

igneous rock that forms when magma cools below the Earth’s surface

A

instutive rocks

23
Q

intrusive rock mass that measures more than 100 kilometres across

A

batholights

24
Q

a hard, igneous rock with different-coloured crystals large enough to see.

A

granite

25
Q

large bodies of ice that move down slopes and push boulders, rocks and gravel in front of them

A

glaciers

26
Q

deposit left by movement of a glacier

A

moraines

27
Q

a sedimentary rock with medium-sized grains. The sand grains are cemented together by silica, lime or other salts.

A

sandstone

28
Q

a fine-grained, sedimentary rock without layering

A

mudstone

29
Q

a fine-grained sedimentary rock formed in layers by the consolidation of clay

A

shale

30
Q

a sedimentary rock with a particle size between that of sandstone and mudstone

A

siltstone

31
Q

sedimentary rock containing large particles of various sizes cemented together

A

conglomerate

32
Q

a rock fromed by oceans dead organs

A

limestime

33
Q

a rock formed by dead plants and bodys bered under ground

A

coal

34
Q

a clcal that never ends

A

rock cyical

35
Q

rocks mined to obtain a metal or other chemical within them

A

mineral ores

36
Q

extraction of natural resources from the Earth

A

mining

37
Q

environmental

A

environmental impact statement

38
Q

environmental impact statement

A

study of the possible effects of a planned project on the environment

39
Q

rehabilitated

A

restored to its previous condition

40
Q

overburden

A

waste rock removed from below the topsoil. This rock is replaced when the area is restored.

41
Q

open-cut mining

A

mining that scours out soil and rocks on the surface of the land

42
Q

folding

A

the buckling of rocks. It is caused when rocks are under pressure from both sides.

43
Q

palaeontologists

A

a scientist who studies fossils

44
Q

relative age

A

the age of a rock compared with the age of another rock

45
Q

carnivores

A

animal that eats other animals

46
Q

scavengers

A

animals that eat dead plant and animal material

47
Q

mould

A

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

48
Q

trace fossils

A

fossils that provide evidence, such as footprints, that an organism was present when the rock was formed

49
Q

extinct

A

describes volcanoes that are no longer active. Extinct volcanoes have not erupted for thousands of years and show no sign of future eruption.

year 8 science (2 decks)

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