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8th Grade > Chapter 1-6 Review > Flashcards

Chapter 1-6 Review Flashcards

1
Q

Dependent variable

A

The variable observed to determine the results of an experiment

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2
Q

Crevasses

A

Deep crack or fissure that develop on the surface of a glacier

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3
Q

The main agent of chemical weathering

A

Water

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4
Q

Drumlin

A

A hill from a glaciers overruns old till

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5
Q

Anomaly

A

A fossil that is found in the wrong time period of a strata layer

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6
Q

Continental Slope

A

a sharp drop off after the sandy underwater plain

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7
Q

Polystrate fossil

A

A fossil found through multiple strata

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8
Q

Luster

A

How light is reflected from a mineral

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9
Q

Modified Mercalli Scale

A

Earthquake scale that is based on the effects on people and structures

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10
Q

Theistic evolution

A

The attempt to combine evolution and the Bible

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11
Q

Cro-Magnon man

A

Supposed missing link, however was a “modern” human

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12
Q

The type of dune that has several out reaching arms

A

Star dune

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13
Q

What was responsible for most of the sediment rock layers?

A

The Flood

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14
Q

Exfoliation

A

The breaking away or peeling of rock into layers

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15
Q

Karst regions

A

Vast areas of exposed limestone

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16
Q

Gravity corer

A

Brings up sediment samples

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17
Q

Strip Cropping

A

Planting alternating strips of different crops

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18
Q

The appearance of twin underwater mountain ranges

A

Rift

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19
Q

Load

A

Material carried by a stream

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20
Q

Mantle

A

The middle layer of the earth

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21
Q

The two factors that determine the density of seawater?

A

Salinity and temperature

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22
Q

Metamorphic rock

A

Rocks that have been “cooked” into something else

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23
Q

Atoll

A

A coral-reef island that grows around an underwater volcano

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24
Q

Uniformity

A

Earth’s natural laws have EXISTED all the time

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25
Q

Turbidity current

A

Ocean current that is mixed with mud or silt

26
Q

A easy to maneuver robot connect to a support ship by cables

A

ROV

27
Q

Sodium Chloride

A

The main salt in the ocean?

28
Q

Hadal zone

A

A point in the sea deeper than 6000m

29
Q

Tsunami

A

Large wave caused by underwater disturbance

30
Q

A large valley in the deep ocean floor

A

Trench

31
Q

How does the ocean get its color?

A

That is its natural color

32
Q

Why does ice float?

A

It is less dense than water

33
Q

Sonar

A

Sound waves underwater used for navigation

34
Q

Upwelling

A

Occurs when a breeze blows water away from the coast

35
Q

Expendable bathythermograph

A

Takes temperatures at various depths and sends info back

36
Q

The mass of foaming water formed when waves wash up onto the beach?

A

Surf

37
Q

A wave that gets too tall and topples over

A

Breaker

38
Q

Gyer

A

The circular path that currents follow

39
Q

Radiometric Dating

A

used to assign absolute ages to rocks

40
Q

Challenger Deep or Mariana Trench

A

The deepest know point in the ocean

41
Q

Cranial capacity

A

The volume of the portion of the skull that holds the brain

42
Q

Soil creep

A

The slow downhill movement of soil

43
Q

Diurnal tide

A

Only one high tide and one low tide each day

44
Q

Top soil

A

The top layer of soil

45
Q

Natural selection

A

The strongest and fittest survive

46
Q

Obsidian

A

Glass-like igneous rock that breaks with sharp edges (Think arrowhead)

47
Q

The largest group of minerals, composes 90% of crust?

A

Silicates

48
Q

Composite volcano

A

alternating layers of lava and ash

49
Q

Thrust fault

A

The rocks on one side are shoved on top of the other side

50
Q

Repeatability

A

Duplicating an experiment multiple times

51
Q

Seymoria

A

The supposed like of amphibians and reptiles

52
Q

Conglomerate rock

A

consists of pebbles in hardened sand

53
Q

Uranium

A

Fuel for nuclear reactors

54
Q

Aftershocks

A

Small earthquakes after a main earthquake

55
Q

A blue gemstone made of corundum with iron or titanium

A

Sapphire

56
Q

Levee

A

Natural ridges formed from sediments along the edge of a river channel

57
Q

Index fossil

A

used to date rock layers

58
Q

Kilopascal

A

used to measure hydrostatic pressure

59
Q

What are large holes formed when huge chunks of melting glacial ice lodged in sediments

A

Kettle

60
Q

Uniformitarianism

A

The present is the key to the past

61
Q

Rip current

A

Dangerous current that drags water through a break in a sandbar

62
Q

What is the process of changing a slope into stairs

A

Terracing

8th Grade (3 decks)

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