"Evolution of the Earth" Earth in the Universe PPT download

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"Evolution of the Earth" Earth in the Universe PPT download

Part One Content: Curriculum Standards:

Use the geological timetable and other data to briefly describe the evolution of the earth.

Literacy goals:

1. Based on the strata and fossils, the age when the strata were formed can be determined and the characteristics of the geographical environment when the strata were formed can be inferred. (geographical practice)

2. Based on the geological timetable, analyze the earth's appearance, crustal movement, and paleontological conditions in different geological stages of the earth. (regional awareness)

3. Combined with actual archaeological data, analyze the geographical environment characteristics of the formation period. (comprehensive thinking)

4. Combined with several major extinctions of living things in geological history, establish the concept of harmonious coexistence between man and earth. (Coordinated view of man and earth)

The evolution of the earth PPT, part 2: essential knowledge and foundation of literacy

1. Stratigraphy and Fossils

1. Stratum: It is the _________ or accumulation that spreads in a band in the upper part of the earth's crust.

[Discriminate]Determine whether the following statements are true or false.

①The oldest rocks on Earth are about 4.6 billion years old. ( )

② Sedimentary strata are generally older on top and newer on the bottom. ( )

③Sedimentary rock formations have obvious bedding structures. ( )

2. Fossils:

(1) Type: _____ of paleontology, such as shells, bones, etc.; _____ of paleontological activities, such as footprints, feces, etc.

(2) Meaning.

[Question] Can the remains of all living things, or all the components and organs of every living thing, become fossils?

Hint: No. The formation and preservation of fossils require certain conditions.

2. The evolution history of the earth

1. Geological time: The specific formation of _____ in different geological eras in the earth’s crust___________. There are three levels of commonly used geological time units, from largest to smallest, they are___________.

2. Precambrian:

(1) Time range: Before the Cambrian period of the Paleozoic era, it took about _____ years.

(2) Stage division: divided into Hadean Eon, _________, and Proterozoic Eon in early and late order.

(3) Geographical environment characteristics.

3. Phanerozoic:

(1) Time range: It is the period since _______.

(2) Stage division: Paleozoic Era, _____ Era and Cenozoic Era.

(3) Geographical environment characteristics.

[Question] At the end of the Paleozoic era, almost 95% of species disappeared from the earth. How do you understand it?

Tip: The atmospheric environment of the Earth in the Paleozoic Era was unstable, the crust moved violently, and there were few biological species. Therefore, changes in the Earth's environment or changes in the cosmic environment will endanger the survival of organisms on the Earth.

The evolution of the earth PPT, the third part: key capabilities and literacy formation

Ability 1: Infer geological age and geographical environment based on strata and fossils

1. Based on the "three determinations" of stratigraphy:

(1) Determine the formation time of the formation.

Under normal conditions, the distribution of strata is in chronological order, that is, "old strata are at the bottom and new strata are at the top." Therefore, based on the upper and lower position relationship between the two strata, we can speculate on the early and late formation sequence of the two strata. As shown in the figure, formation A is the oldest and formation D is the newest.

(2) Determine the status of crustal movement.

The strata under normal conditions should be parallel and continuously distributed. If the stratum bends, it means that the crust there has undergone horizontal movement; if there is obvious displacement between the same rock layers in the crust, it means that the crust there has undergone vertical movement; if the distribution of the strata is missing, it means that the crust there has moved in the missing strata. During geological time, the earth's crust has undergone dramatic changes.

(3) Determine the geographical environment characteristics.

Sedimentary strata are composed of sediments, so the original stratigraphic composition materials are maintained in the sedimentary strata. The characteristics of the geographical environment at that time can be determined based on the composition of the formation. For example, the environment where the limestone formation was formed was a marine environment.

2. Based on the “two determinations” of stratigraphic fossils:

(1) Determine the geological age of formation.

Since the geological period has experienced several major biological extinction events, some organisms only survive in a specific geological period, such as trilobites in the Paleozoic Era and fossils in the Mesozoic Era; some organisms have evolved to a certain geological period. It only appeared during the period, and the evolution of organisms is from low-level to high-level, from simple to complex. From this, the geological age of the formation of strata containing certain biological fossils can be determined.

(2) Determine the geographical environment of formation time.

Different organisms live in different geographical environments, so the sedimentary environment in which fossils of a certain organism are preserved is the living environment of that organism. For example, coal reflects the characteristics of dense forest environments, and strata with fish fossils reflect the characteristics of aquatic environments.

Ability 2: Analyze the evolution of the earth

1. Division of geological time:

The division units of geological time from largest to smallest are epoch, generation, era, etc.

(1) Precambrian: 540 million years ago, the earth went from lifeless to primitive life. Includes three stages:

(2) Phanerozoic: Earth full of life.

The Phanerozoic is the stage when a large number of higher organisms began to appear, and is divided into the Paleozoic, Mesozoic and Cenozoic Era.

2. Evolutionary characteristics of landforms and organisms:

(1) Evolution of landforms.

(2) Biological evolution.

【Literacy Research】

The earth is the cradle of life. Biology was produced in distant ancient times. The production process is complex and requires a variety of combinations of conditions: first, there must be abundant organic matter that can evolve into biological materials; there must be water for biological recycling; there must be biological Minerals necessary for life; oxygen for maintaining life and breathing activities; and temperatures for biological life to adapt to. Biology is the result of the long-term evolution of nature and the orderly combination of reactions among a variety of organic matter.

(1) (Geography practice ability) Determine the important period in the geological history for the formation of coal, and explain the reasons?

Hint: The Carboniferous Period of the Paleozoic Era. The flourishing of Earth's plants during the Carboniferous period provided a strong material basis for the formation of coal, and the subsequent orogeny provided external conditions for the formation of coal.

(2) (Comprehensive thinking) According to the diagram, describe the sequence of biological evolution in the animal and plant kingdoms. What rules does it reflect?

hint:

Animals: invertebrates → vertebrates; among vertebrates, fish → amphibians → reptiles → birds → mammals.

Plants: algae → mosses → ferns → gymnosperms → angiosperms.

It reflects the law of biological evolution: simple → complex; lower → higher; aquatic → terrestrial.

Keywords: Hunan Education Edition High School Geography Compulsory Course 1 PPT Courseware Free Download, Evolution of the Earth PPT Download, Earth in the Universe PPT Download, .PPT format;

For more information about the PPT courseware "The Earth in the Universe and the Evolution of the Earth", please click on the "Earth in the Universe ppt The Evolution of the Earth ppt" tag.

"The Evolution of the Earth" Earth in the Universe PPT teaching courseware:

"The Evolution of the Earth" Earth in the Universe PPT teaching courseware Part One: Basic Review 1. Strata and Fossils 1. The pages of strata record the history of the earth (1) Concept: layered rocks or accumulations spread in strips in the upper part of the earth's crust. (2) Characteristics of places in different eras..

"Evolution of the Earth" Earth in the Universe PPT courseware:

"Evolution of the Earth" Earth in the Universe PPT courseware Part 1: Strengthening the implementation of basic knowledge [Key points for self-reading textbooks] 1. Strata and fossils 1. Stratum (1) Concept: The layered rocks or accumulations spread in a band in the upper part of the earth's crust. (2) Meaning: Strata is a record...

"The Evolution of the Earth" Earth in the Universe PPT:

"The Evolution of the Earth" The Earth in the Universe PPT Part One: Goal Setting 1. Understand the chronology of Earth's geological history. 2. Understand the role of stratigraphic and fossil studies in understanding Earth's history. 3. It can briefly describe the evolution of the earth based on the geological timetable..

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Update Time: 2024-11-13

This template belongs to Geography courseware Hunan Education Edition High School Geography Compulsory Course I industry PPT template

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