AEPA Earth Science AZ045 study plan

Classify 30 common rock-forming minerals using cleavage, luster, hardness, and streak, and justify each identification with at least two diagnostic properties.

Distinguish igneous, sedimentary, and metamorphic textures, and explain how cooling rate, pressure, and cementation each produce a specific texture.

Identify the independent variable, dependent variable, and controlled variables in six described investigations, then state one concrete improvement to each design.

Differentiate hypothesis, prediction, and conclusion across three scenarios, flagging explicitly where the stated evidence is insufficient to support the claim.

Label a cross-section of Earth's interior with both compositional and mechanical layers, and relate each boundary to seismic wave behavior including P and S wave shadow zones and the Moho.

Compare divergent, convergent, and transform boundaries by describing the landforms, earthquake depth ranges, and volcanic styles that each typically produces.

Predict the boundary type and the expected geologic hazards at five described regions using only text descriptions of topography, seismicity, and volcanism.

Interpret a supplied table of earthquake epicenters and depths to infer the location and orientation of a plate margin, writing out the reasoning chain step by step.

Evaluate the evidence set for continental drift and seafloor spreading, including paleomagnetism, seafloor age patterns, fossil matching, and the fit of continental margins.

Apply superposition, cross-cutting relationships, inclusions, and the three unconformity types to sequence eight described rock units from oldest to youngest.

Distinguish relative dating from absolute dating, and explain how index fossils and the principle of faunal succession constrain correlation between separated outcrops.

Calculate parent-to-daughter ratios, number of half-lives elapsed, and sample ages for five radioactive decay problems presented as data tables.

Order major events of Earth history, from the origin of life through the Great Oxidation Event, the Cambrian explosion, and named mass extinctions, on a proportionally scaled timeline.

Describe three modes of fossil preservation and state what each mode preserves well and what information it destroys or omits.

Explain how the fossil record, radiometric ages, and stratigraphic sequences together constrain the timing of major diversifications and mass extinctions.

Summarize the proposed mechanisms for at least two mass extinctions and evaluate the strength of the evidence supporting each mechanism.

Complete a timed 60-question mixed practice test spanning Domains 1 through 3 and tag every missed item by error type as misread, content gap, or careless slip.

Re-teach each content-gap item in two to three sentences without consulting notes, then verify the explanation against a reference source.

Describe the layered structure and composition of the atmosphere and explain how temperature and pressure change with altitude within each layer and at each pause.

Explain how temperature and salinity control seawater density and how density differences drive deep thermohaline circulation.

Relate wind-driven surface currents, Coriolis deflection, and coastal upwelling to global heat transport and regional climate patterns.

Interpret a supplied set of weather observations to identify air masses, frontal types, and the sequence of weather changes a passing front would produce.

Contrast El Nino and La Nina conditions and the specific weather anomalies each is associated with in named regions.

Trace incoming solar radiation through reflection, absorption, and re-emission, and quantify the greenhouse effect using a simple drawn energy budget with numeric values.

Distinguish natural from anthropogenic climate forcings and classify a supplied list of examples as positive feedback, negative feedback, or forcing.

Evaluate the reliability of ice cores, tree rings, and sediment cores by stating what each proxy measures and the specific limitations of each.

Design a controlled investigation that would test one climate variable, specifying instrumentation, sampling frequency, sample size, and a method for reducing bias.

Explain how axial tilt, revolution, and orbital eccentricity produce seasons, solstices, and equinoxes, and correct two common misconceptions about distance and seasons.

Predict moon phase, approximate rise and set times, and eclipse conditions from described Sun-Earth-Moon geometries in at least ten scenarios.

Explain the causes of spring and neap tides and relate tidal range to the alignment of the Sun and Moon.

Compare terrestrial and Jovian planets and explain how solar system formation models account for their compositional and orbital differences.

Distinguish rotation, revolution, precession, and nutation, and state the observable effect of each on a stated timescale.

Interpret a Hertzsprung-Russell diagram to classify stars by luminosity and temperature and to describe the evolutionary path of a low-mass and a high-mass star.

Summarize the observational evidence for cosmic expansion and the Big Bang, including redshift measurements and the cosmic microwave background.

Complete a full-length 100-question timed mock exam covering all five domains under exam conditions with no notes.

Rank remaining weak areas by missed-item frequency and produce a prioritized review list for the final 48 hours before the test.