The document provides an overview of the history of Earth from its formation 4.5 billion years ago to the present. It describes how the solar system formed, including the Earth, and the early development of the planet. Key events mentioned include the formation of the first life forms, the rise of oxygen in the atmosphere, the emergence of complex life and fossils, periods of climate change, shifting continents, and mass extinctions. The text also discusses methods for dating the age of the Earth and geological eras.
Compress 13 bilion years of the earth's history into a single day and here is how it looks. Humans don't appear until 1 minute and 17 seconds to midnight.
Compress 13 bilion years of the earth's history into a single day and here is how it looks. Humans don't appear until 1 minute and 17 seconds to midnight.
The universe began about 14.4 billion years ago.
The Big Bang Theory states that, in the beginning, the universe was all in one place.
To know more, see the presentation.
This PowerPoint is one small part of the Geology Topics unit from www.sciencepowerpoint.com. This unit consists of a five part 6000+ slide PowerPoint roadmap, 14 page bundled homework package, modified homework, detailed answer keys, 12 pages of unit notes for students who may require assistance, follow along worksheets, and many review games. The homework and lesson notes chronologically follow the PowerPoint slideshow. The answer keys and unit notes are great for support professionals. The activities and discussion questions in the slideshow are meaningful. The PowerPoint includes built-in instructions, visuals, and review questions. Also included are critical class notes (color coded red), project ideas, video links, and review games. This unit also includes four PowerPoint review games (110+ slides each with Answers), 38+ video links, lab handouts, activity sheets, rubrics, materials list, templates, guides, 6 PowerPoint review Game, and much more. Also included is a 190 slide first day of school PowerPoint presentation.
Areas of Focus within The Geology Topics Unit: -Plate Tectonics, Evidence for Plate Tectonics, Pangea, Energy Waves, Layers of the Earth, Heat Transfer, Types of Crust, Plate Boundaries, Hot Spots, Volcanoes, Positives and Negatives of Volcanoes, Types of Volcanoes, Parts of a Volcano, Magma, Types of Lava, Viscosity, Earthquakes, Faults, Folds, Seismograph, Richter Scale, Seismograph, Tsunami's, Rocks, Minerals, Crystals, Uses of Minerals, Types of Crystals, Physical Properties of Minerals, Rock Cycle, Common Igneous Rocks, Common Sedimentary Rocks, Common Metamorphic Rocks.
This unit aligns with the Next Generation Science Standards and with Common Core Standards for ELA and Literacy for Science and Technical Subjects. See preview for more information
If you have any questions please feel free to contact me. Thanks again and best wishes. Sincerely, Ryan Murphy M.Ed www.sciencepowerpoint@gmail.com
The universe began about 14.4 billion years ago.
The Big Bang Theory states that, in the beginning, the universe was all in one place.
To know more, see the presentation.
This PowerPoint is one small part of the Geology Topics unit from www.sciencepowerpoint.com. This unit consists of a five part 6000+ slide PowerPoint roadmap, 14 page bundled homework package, modified homework, detailed answer keys, 12 pages of unit notes for students who may require assistance, follow along worksheets, and many review games. The homework and lesson notes chronologically follow the PowerPoint slideshow. The answer keys and unit notes are great for support professionals. The activities and discussion questions in the slideshow are meaningful. The PowerPoint includes built-in instructions, visuals, and review questions. Also included are critical class notes (color coded red), project ideas, video links, and review games. This unit also includes four PowerPoint review games (110+ slides each with Answers), 38+ video links, lab handouts, activity sheets, rubrics, materials list, templates, guides, 6 PowerPoint review Game, and much more. Also included is a 190 slide first day of school PowerPoint presentation.
Areas of Focus within The Geology Topics Unit: -Plate Tectonics, Evidence for Plate Tectonics, Pangea, Energy Waves, Layers of the Earth, Heat Transfer, Types of Crust, Plate Boundaries, Hot Spots, Volcanoes, Positives and Negatives of Volcanoes, Types of Volcanoes, Parts of a Volcano, Magma, Types of Lava, Viscosity, Earthquakes, Faults, Folds, Seismograph, Richter Scale, Seismograph, Tsunami's, Rocks, Minerals, Crystals, Uses of Minerals, Types of Crystals, Physical Properties of Minerals, Rock Cycle, Common Igneous Rocks, Common Sedimentary Rocks, Common Metamorphic Rocks.
This unit aligns with the Next Generation Science Standards and with Common Core Standards for ELA and Literacy for Science and Technical Subjects. See preview for more information
If you have any questions please feel free to contact me. Thanks again and best wishes. Sincerely, Ryan Murphy M.Ed www.sciencepowerpoint@gmail.com
A presentation on an under-rated topic which is dear to my heart.
I know some of you might disagree, but please spread the message: it's a real issue we should all be well aware of.
Many people are already advocating, but in the end it's up to us.
Chapter 2 Geology of Ethiopia and the Horn. The geology of Ethiopia includes rocks of the Neoproterozoic East African Orogeny, Jurassic marine sediments and Quaternary rift-related volcanism. Events that greatly shaped Ethiopian geology is the assembly and break-up of Gondwanaland and the present-day rifting of Africa.
This power point is important for all Ethiopian first year freshman universities students for the common course of Geography of Ethiopia and the Horn (GeES 1011), It is prepared on the bases of the module with additional explanations, important maps & explanatory images are included.
This power point mainly focuses on the geological history of the Earth in general and Ethiopia in particular. It is the best source of for all first year university freshman student of Ethiopia. if you are studying this course for A+ this material will definitely help. this material proven to be helpful by students of number of universities for the past four years.
Earth science is a broad spectrum of science that covers life science and physical science. Life science is all about the study of living organisms and their relationships including biology, anatomy, ecology, etc.
Origin of Earth, Big Bang theory, Nebular hypothesis, Internal heating of earth, formation of Earth's crust and inner structure, evolution of continents, oceans and atmosphere, continental drift theory, origin of life, Geological Time Scale.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
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Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
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A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
2. Index
1. The Formation of the Solar System
2. The Age of the Earth
3. Fossils
4. The Changing Earth
5. The Earth’s history
6. Life of Earth
3. The Sun and the planets were formed at the same time. There are some evidences:
All the planets move around the Sun on the same ecliptic plane
The planets move around the Sun in the same direction (counter-clockwise) and
the Sun revolves in the same direction, too.
4. Materials have been
distributed by the gravity
depending on their
melting point:
The ones that have a high
melting point (refractory)
are close to the Sun
INNER PLANETS
Mercury Venus Earth Mars
The ones that have a low
melting point (volatile)
are further away
OUTER PLANETS
Jupiter Saturn Uranus Neptune
5. After the Big Bang matter was concentrated in
different points, forming stars and nebulas (dust +
gas).
1. A star exploded becoming
a supernova
2. A nebula appeared
3. The nebula rotated aund
flattened into a disc shape
4. The temperature rose due
to particles colliding. Nuclear
fusion began in the centre
The Sun appeared
6. The temperature
decreased and
materials condensed
the most refractory
near the Sun
INNER PLANETS
The most volatile far
away from the Sun
OUTER PLANETS
These materials (PLANETESIMALS) were joining together until the planets formed. This
process is called PLANETESIMAL ACCRETION
7. The heat generated melted much of
the planet
Metallic
materials
(denser)
CORE
Silicated
materials
CRUST
Gas
ATMOSPHERE
Activities 1, 2, 3, 4 page 51
8. Previous hypothesis
(nowadays NOT
accepted)about the
age of the Earth
James Ussher (17th
century)
4000 b.C
Lord Kelvin (19th
century)
40 million years
John Joly (19th
century)
100 million years
9. CURRENT ESTIMATION 4550 million years
DATING = It consists of estimating the age of an event or object or placing it in a
specific time or period.
Rock, fossil…
10. Dating methods in
geology
Absolute dating
They determine the age
of the events or
materials
Relative dating
They put materials or
events in chronological
order without specifying
exact dates
Example 1 : Put the next events in chronological order:
B
A
C
D
E
Solution: A, B, C, D, E, erosion
11. Example 2 : Put the next events in chronological order:
Solution: 1, 2, 3, normal fault, erosion, 4
Solution: pink, red, erosion, orange, yellow, blue
12. Absolute dating methods: RADIOMETRIC DATING
Method used to date an object by comparing the number of
specific radiactive isotopes it contains
Some atoms lose particles from their nucleus in a process of disintegration.
This process happens at fixed speeds.
13. (período de semidesintegración)
The speed of disintegration is expressed as the HALF LIFE (T) of a substance. It is
the time required for half of a mass of radiactive isotopes to disintegrate.
14.
15. Relative dating methods
The deposit of layers (or sedimentation) happens periodically.
The layers are deposited horizontally and have the same age in the whole layer.
Principles
Principle of superposition
Each layer is younger than the one below it and older
than the one above it
Principle of cross-cutting relationships
An event (fault, fold…) is younger than the rocks it
affected and older than the rocks it did not affect
Principle of faunal succession
The fossils contained in one layer are the same age as
the layer. So, each period in the history of the Earth
can be classified by a type of fossil Activities 5 and 6 page 51
16. PALEONTOLOGY = It is the part of geology that studies fossils.
FOSSILS = They are the remains of living beings or their activity
preserved in rocks.
Fossilization (it is a rare ocurrence)
An organism dies and its body lays on the ground
The soft parts are decomposed
Sediments cover the remains
Diagenesis takes place and the minerals of the sediments substitute
the atoms of the bones, shell…
The sedimentary rock is eroded and the fossil appears uncovered
17. Importance of
fossils
They provide temporal
information
A fossil species will only
appear in rocks for a
specific period of time
(when it lived)
They provide
paleoecological
information
Learn about the
environmental
conditions of a
particular age
INDEX FOSSILS
(fósiles-guía): fossils of
species that existed for
short periods of time
over large areas
Trilobites, ammonites
Ammonite Trilobite
18. MAIN INDEX FOSSILS
trilobites ammonites nummulites
Paleozoic Mesozoic Cenozoic
19. Theories in the
18th-19th
centuries
Catastrophism
(Cuvier)
Isostatic movements, erosion….
There have been sudden
catastrophes that, in a
short space of time, have
changed the Earth
completely
Uniformitarianism
(Lyell)
Slow and imperceptible
changes over millions of
years produce enormous
alterations.
“The same geological
processes that are
observable today were
also responsible for the
changes on Earth in the
past
20. Theories accepted today:
• The changes on the Earth’s surface are mostly
gradual
• There are rare violent events which can also
affect the planet
Types of changes
Climate changes Warm periods/glacial
periods
Sea level changes More or less land
exposed
Palaeogeographic
changes
Changes in the
distribution of the
continents due to
plate tectonics
Changes in
biodiversity
Sudden, massive
extinctions
25. Based on the great changes that took place in the past, geologists have divided the
geological time (more than 4500 million years) into units:
EONS ERAS PERIODS
Hadean
Archaean Pre-Cambrian
Proteozoic
Phanerozoic
Paleozoic
Cambrian
Ordovician
Silurian
Devonian
Carboniferous
Permian
Mesozoic
Triassic
Jurasic
Cretaceous
Cenozoic Tertiary
Quaternary
Present Day
27. First rocks, first atmosphere and oceans were formed
Many meteorites bombarded the Earth
Lots of volcanic activity
First life forms probably existed at the end of the Eon
28. Most of the Earth was an ocean. Microcontinents.
First prokaryote cells.
Arqueobacteria
29. Meteorite bombardment stopped.
Tectonic plate movement began.
1000 Ma ago one supercontinent (Rodinia) was formed.
Cryogenian period coldest period of the planet’s history (tillites have been found
in almost all continents).
Oxygen appeared:
30. Cyanobacteria appeared (autotrophic cells which formed rocks called stromatolites).
They did photosynthesis oxygen is accumulated in the atmosphere
Aerobians appeared first eukaryotic cells first multicellular organisms
Ediacaran fauna soft bodied organisms found in Australia
32. At the beginning (Cambrian) continents were separated.
They reunited in the Permian forming Pangaea.
Caledonian orogeny
+
Hercynian orogeny
First plants appeared on the land, followed by arthropods, amphibians and reptiles.
Many new species and extinctions.
Carboniferous: forest of giant ferns coal.
Typical fossils:
trilobites
giant ferns
graptolites
Lepidodendron
Trilobites
INDEX FOSSIL: TRILOBITES
34. Continents separated to reach their current location.
Warm climate.
Rise in the global sea level half of the continents were submerged they were
covered by limestone and plankton PETROLEUM
250 Ma ago: trilobites extinction
656 Ma ago: dinosaurs + ammonites extinction, probably caused by a meteorite.
Reptiles were the dominant animals “Age of Reptiles”.
First mammals and first birds, first plants with flowers.
INDEX FOSSIL: AMMONITE AND BELEMNITES
37. Alpine Orogeny
Climate cooled
Glacial + short interglacial periods many changes in the sea level
Dominant living beings: mammals and flowering plants
INDEX FOSSIL: NUMMULITES
Smilodon (sabre-toothed) in America
Australopithecus
39. EON ERA PERIOD AGE LIFE FORMS AND FOSSILS GEOLOGY CLIMATE AND
ATMOSPHERE
PHANEROZOIC CENOZOIC QUATERNARY
65 Ma
First hominids
“Age of Mammals and Birds”
Alpine Orogeny
Glacial +
Interglacial
periods
TERTIARY
MESOZOIC CRETACEOUS
250 Ma
First Angiosperms
First Birds
First Mammals
“Age of Reptiles”
Current location of
continents
Rise in the sea level
(petroleum)
Warm Climate
JURASSIC
TRIASSIC
PALAEOZOIC PERMIAN
540 Ma
Forest of giant ferns (coal)
First Reptiles
First Amphibians
First Fish
First Arthropods
Pangea
Hercynian Orogeny
Caledonian Orogeny
Continents were
separated
Glacial Period
Glacial Period
CARBONIFEROUS
DEVONIAN
SILURIAN
ORDOVICIAN
CAMBRIAN
PROTEROZOIC PRE-CAMBRIAN
2500 Ma
First eukaryotic cells
First aerobians
Cyanobacteria
Rodinia
Cryogenian
period
Atmosphere
with oxygen
ARCHAEAN First prokaryotic cells Microcontinents
HADEAN
4500 Ma
First biomolecules First rocks
Meteorites
Volcanic activity
First
atmosphere
(without
oxygen)