Notes, summaries, assignments, exams, and exercises for Geology for Primary education

Properties and Applications of Modern Construction Materials

Geology3.51 KB

Stone for Construction

Igneous Rocks: Composed of silicates and other compounds such as aluminum, iron, calcium, magnesium, sodium, and potassium, these are formed by magma inside the earth. Varieties include:

  • Crystal: Very hard and resistant to weathering (granite, gabbro, and diorite).
  • Glass structure: Basalt, pumice, and liparite (rhyolite).

Sedimentary Rocks

Formed from sediments over many years. According to their composition:

  • Siliceous rocks: Formed by sand and gravel.
  • Limestones: Include calcite and gypsum.
  • Clay: Comes from sedimentary deposits.

Metamorphic Rocks

Produced by changes in the crystal structure. Examples include schist and marble.

Clay and Ceramic Products

The gathering process involves: preparation of materials, molding, drying, firing...

Continue reading "Properties and Applications of Modern Construction Materials" »

Environmental Challenges: Pollution, Ozone Depletion, and Acid Rain

Geology2.08 KB

Environmental Principles

  • Principle of Sustainable Emission
  • Principle of Zero Emissions
  • Principle of Sustainable Technology Selection
  • Precautionary Principle

Environmental Classifications

  • Atlantic
  • Mediterranean
  • Continental
  • Tropical
  • Tree

Environmental Problems by Scale

Local Issues

  • Formation of fog or smog pollutants
  • Noise pollution
  • Electromagnetic fields
  • Bioaccumulative, toxic compounds

Regional Problems

  • Acid rain
  • Ionizing radiation pollution

Global Issues

  • Greenhouse effect and climate change
  • Destruction of the ozone layer

Ozone Layer Depletion

The stratospheric ozone absorbs UV radiation through continuous formation and destruction reactions, which are in dynamic equilibrium.

Between 1977 and 1984, it was revealed that the amount of ozone had decreased by 40% during...

Continue reading "Environmental Challenges: Pollution, Ozone Depletion, and Acid Rain" »

Material Science: Strengthening Mechanisms and Fracture

Geology3.49 KB

1)SOLID SOLUTION HARDENING: addition of strange elements inthelattice produces high distortions and reduce the mobilityofdislocations.
2)PRECIPITATION HARDENING: we introduce precipitates in the material.If the part are very hard,dislocations cant break and form new bonds, so they stop moving.
3)STRAIN: when a material is plastically deformed,the dislocation density increases,making it harder.
4)GRAIN SIZE EFFECT:the smaller the grain size, the tougher the mat is.Grain limits act as barriers to cracks propagation.

1)HOMOGENEOUS NUCLEATION:it takes place when the system doesnt pose any heterogeneity where nucleation can occur in a preferential way.
2)HETEROGEOUS:the nucleation process can suffer a catalytic effect driven by the pressure of heterogeneities.
...
Continue reading "Material Science: Strengthening Mechanisms and Fracture" »

Integrated Pollution Control: Directives 96/61 & Spanish Law 16/2002

Geology1.66 KB

Integrated Pollution Prevention and Control (IPPC)

1.2. Evolution of Environmental Treatment Regimes

This section restates the traditional approach to environmental treatment prevalent over the last 20 years. Traditional treatment regimes established separate pollution controls (air, water, land), resulting in negative consequences for the media involved. This approach did not provide a wide margin of maneuver for the polluting industry, ultimately reflecting a vision of compartments that failed to account for the interconnection between environmental media.

The Integrated System: Directive 96/61/EC

The integrated system, established by Directive 96/61/EC on Integrated Pollution Prevention and Control, fundamentally changed this perspective. It...

Continue reading "Integrated Pollution Control: Directives 96/61 & Spanish Law 16/2002" »

GMO Labeling and Evolution Theories

Geology2.85 KB

Genetically Modified Food Labeling

Genetically Modified Organisms (GMOs) should be labeled. For example, genetically engineered soybeans have DNA from bacteria and viruses spliced into their DNA to help them tolerate weed killers such as Roundup. This genetic feat creates a whole new species of plant that would have never occurred in nature. Soybeans, corn, canola, cotton, and sugar beets are common GMO crops. Products such as oil, high fructose corn syrup, and sugar are created from these crops and added to processed foods. We should have these foods labeled because people want to have transparency in their food supply. Consider Washington's Initiative 522 to label genetically engineered foods.

Theories of Evolution

Creationism

Creationism maintains

...

Continue reading "GMO Labeling and Evolution Theories" »

Essential Environmental and Agricultural Terminology

Geology3.34 KB

Key Environmental Concepts

Vegetation and Ecosystems

  • Endemism: Species characteristic of a specific place.
  • Xerophilous: Species with deep roots for drought support.
  • Maquis: High and dense vegetation.
  • Garrigue: A low form of vegetation, often difficult to penetrate, consisting mainly of drought-resistant shrubs.
  • Conifers: Evergreen trees and shrubs with needle-like or scale-like leaves, cone-shaped fruits, and a conical growth habit.

Climatology and Hydrology

  • Temperature: Measured by isotherms.
  • Rainfall: Measured by isohyets.
  • Pressure: Measured by isobars.
  • SPA: Special Protection Area for birds.
  • Endorheic: Waters that do not drain into the sea.
  • Flow: The volume of water a river carries at a specific point, measured in m³/s.
  • Regime: The water supply system
...
Continue reading "Essential Environmental and Agricultural Terminology" »

Mechanisms of Petroleum Accumulation in Geological Traps

Geology2.42 KB

Hydrocarbon Traps and Petroleum Accumulation

Hydrocarbon traps are any combination of physical factors that promote the accumulation and retention of petroleum in one location. Traps can be structural, stratigraphic, or a combination of the two.

Geologic processes such as faulting, folding, and deposition and erosion create irregularities in the subsurface strata which may cause oil and gas to be retained in a porous formation, thereby creating a petroleum reservoir. The rocks that form the barrier, or trap, are referred to as cap rocks.

Structural Traps

Structural traps are created by the deformation of rock strata within the earth’s crust and are formed by tectonic deformation. This deformation can be caused by horizontal compression or tension,...

Continue reading "Mechanisms of Petroleum Accumulation in Geological Traps" »

Weather Vocabulary in English: Temperature, Rain, Clouds, Wind and More

Geology2.94 KB

Temperature

ºF = degrees Fahrenheit (USA) / ºC = degrees Celsius (rest of the world)

When we talk about temperature: IT + IS / WAS + ADJECTIVE

  • hot → caliente
  • warm → tibio
  • cool → fresco
  • chilly → frío
  • freezing → helado / congelado

Water freezes at 0ºC (32ºF) / water boils at 100ºC (212ºF).

Rain

  • flood → inundación
  • drizzle → llovizna
  • showers → chispear
  • rain → lluvia
  • downpour → chaparrón

Clouds (nubes)

  • cloudy → nublado
  • gloomy → gris
  • overcast → cubierto
  • foggy → con niebla
  • clear → despejado

Cold (frío)

  • blizzard → tormenta de nieve / ventisca
  • hail → granizar
  • sleet → aguanieve
  • snow → nieve
  • snowflake → copo de nieve

Wind (viento)

  • hurricane → huracán
  • breeze → brisa
  • blustery → ventoso
  • windy → con viento
  • gale → vendaval

Other

...
Continue reading "Weather Vocabulary in English: Temperature, Rain, Clouds, Wind and More" »

Immanuel Kant's Philosophy: Metaphysics and Knowledge

Geology3.07 KB

Immanuel Kant's Approach to Metaphysics

Human reason is harassed by questions that it cannot answer, as they surpass its faculties. These are the questions posed by metaphysics. Kant believes that understanding is capable of developing a universally valid science. He was a rationalist but, thanks to his awakening from dogmatic slumber, he also recognized the importance of experience. Kant distinguishes between two types of knowledge conditions: empirical knowledge, the origin of form, and formal knowledge, which adds data to experience.

Kant asks: Is metaphysics a science? We know that knowledge is scientific when it progresses, building on what other scientists have accomplished, and when there is a consensus among scientists. If metaphysics...

Continue reading "Immanuel Kant's Philosophy: Metaphysics and Knowledge" »

Earthquakes: Understanding the Science and Impacts

Geology3.6 KB

Chapter 8 – Earthquakes

What is the elastic rebound theory? Is it possible for energy building up in the lithosphere to be released in a sequence of earthquakes?

Rocks “spring back” – a phenomenon called elastic rebound

Energy is released in a sequence of earthquakes (one earthquake can trigger slip on a nearby fault)

What is a seismic body wave, and what characterizes each of the two types of body waves (i.e. type of motion, velocity)?

  1. Primary(P) waves(spring)=push&pull motion, greatest velocity, arrive first, travel solid, liquid, gases.
  2. Secondary(S) waves (rope)=up&down motion, slower velocity, arrive after P at seismograph, travel only solid.

What is a seismic surface wave, and what characterizes each of the two types of surface

...
Continue reading "Earthquakes: Understanding the Science and Impacts" »