Earth Science Regents: 117 Key Concepts
Classified in Geology
Written at on 
English with a size of 4.48 KB.
117 Ways to Pass the Earth Science Regents
1. The same substance always has the same density.
2. As pressure increases, density increases.
3. As temperature increases, density decreases.
4. Water expands when it freezes.
5. Most changes are cyclic.
6. Water is most dense at 4oC, when it is a liquid.
7. The true shape of the Earth is an oblate spheroid, but from space it looks like a sphere.
44. As temperature increases, air pressure decreases.
45. As moisture increases, pressure decreases.
46. Air pressure decreases with altitude.
47. Highs are cool and dry; lows are warm and wet.
48. Wind is due to air pressure differences.
49. Wind blows from high to low pressure.
50. Wind is named from the direction that it is coming from.
51. The accepted value is the correct answer. The measured value is the guess.
52. The closer the air temperature is to the dew point, the greater the chance for precipitation.
53. Weather moves from west to east in the United States.
57. Cold fronts move the fastest.
58. Porosity does not depend on particle size.
59. As particle size increases, permeability increases.
60. Capillarity increases when particle size decreases.
61. Potential evapotranspiration (EP) depends on temperature.
62. Dynamic equilibrium means balance.
63. Apparent diameter of objects (sun, moon) gets larger when the object is closer to Earth.
64. Vertical rays (overhead sun) can only occur between 23 1/2oN & 23 1/2oS.
65. Index fossils are good time markers (widely spread, lived a short time).
66. Air cools as it rises.
67. Water bodies moderate temperature.
69. Gravity causes all erosion.
70. Streams are the number one agent of erosion.
71. Stream velocity depends on slope and discharge.
72. Velocity is fastest on the outside of a meander bend.
73. Heavy, round, and dense particles settle out first (graded bedding).
74. Vertical sorting: Biggest sediments are on the bottom.
75. Glacial sediments are unsorted, scratched, and form U-shaped valleys.
76. Sedimentary rocks - strata - flat layers - most likely to have fossils.
77. Igneous rock: Cools fast - small crystals; cools slow - large crystals.
78. Metamorphic - banded - distorted structure.
79. Mineral properties depend on internal atomic arrangement.
80. Silicon + oxygen = tetrahedron.
81. Isostasy: Earth's crust in equilibrium.
82. Mid-ocean ridge - new Earth being created - seafloor spreading.
83. Trenches - Earth being destroyed - subduction zone.
84. P waves are faster than S waves.
85. P waves - solids and liquids can pass through; S waves - solids only.
86. You need three seismometer stations to plot an earthquake.
87. Undisturbed strata - bottom layer is oldest.
88. Intrusions and faults are younger than the rock they are in.
89. Unconformity means erosion.
90. Arid landscape: steep slopes with sharp angles.
91. Humid landscape: smooth with rounded slopes.
92. When in doubt, see if the reference tables will help.
93. Uranium-235 dates old rocks.
94. Carbon-14 dates recent living objects.
95. Convection currents in the mantle move plates.