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A1 noun #2,766 پرکاربردترین 8 دقیقه مطالعه

地層

chisō
تمرین کن مثال‌ها نکات و راهنمایی‌ها 地層 در ۳۰ ثانیه
توضیح 地層 in your Level:
At the A1 level, you only need to know that 地層 (chisou) means 'layers of the earth.' You might see this word in a picture book about nature or a simple science poster. Think of it as 'ground stripes.' You don't need to use it in complex sentences yet. Just recognize that 地 (chi) means 'ground' and 層 (sou) means 'layer.' If you see a mountain with lines on it, those lines are 地層. It is a noun, so you can say 'Chisou desu' (It is a geological layer). This word helps you describe the natural world in a very basic way.
At the A2 level, you can start using 地層 in simple descriptive sentences. You might say 'I saw 地層 at the beach' or 'The 地層 is beautiful.' You are beginning to understand that these layers are made of sand and stone. You can use the particle 'ni' or 'de' to describe where the 地層 is. You might also learn the word 'fossil' (kaseki) and use it with 地層, like 'Fossils are in the 地層.' This level is about connecting the word to physical objects you can see during travel or in basic science lessons.
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At the B1 level, you can explain how 地層 are formed using basic sequence words like 'first,' 'then,' and 'after a long time.' You can understand simple news reports about geological findings. You should be able to distinguish 地層 from related words like 'soil' (dojou) or 'ground' (jimen). You can use more complex grammar, such as 'The 地層 that was formed millions of years ago' (Nan-man-nen mo mae ni dekita chisou). You might also encounter this word in documentaries or intermediate reading materials about Japan's geography.
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At the B2 level, you can discuss the scientific significance of 地層. You can talk about stratigraphy, sedimentation, and how tectonic activity affects the layers. You are comfortable using the word in academic or professional contexts, such as a university lecture or a construction briefing. You understand that 地層 can be 'exposed' (roshutsu suru) or 'disturbed' (midareru). You can also begin to appreciate the metaphorical use of the word in literature to describe layers of time or history, and you can explain these metaphors to others.
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At the C1 level, you have a nuanced understanding of 地層. You can use it fluently in discussions about environmental science, civil engineering, or archaeology. You understand technical terms like 'conformity' and 'unconformity' in relation to strata. You can read complex scientific papers that use 地層 as a base for data analysis. Your metaphorical use of the word is sophisticated; you might describe the 'cultural 地層' of a city like Kyoto, where modern life sits atop layers of imperial and feudal history. You can debate the implications of geological shifts on urban planning.
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At the C2 level, 地層 is a tool for precise scientific or philosophical expression. You can engage in high-level academic discourse about the Anthropocene and how human activity is creating a new 地層 in the Earth's record. You can analyze classical Japanese literature where the earth's layers are used as a motif for the passage of time. Your mastery allows you to use the word with absolute precision, distinguishing it from even the most closely related technical synonyms. You can write professional-grade reports or give keynote speeches involving geological strata with perfect register and tone.
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تمرین کن مثال‌ها نکات و راهنمایی‌ها

地層 در ۳۰ ثانیه

  • 地層 (Chisou) refers to the distinct geological layers of rock and sediment visible in the Earth's crust, often appearing as horizontal stripes on cliffs.
  • It is a common term in Japanese science education, used to teach students about the Earth's history, sedimentation, and the formation of fossils.
  • The word is composed of 'earth' (地) and 'layer' (層), and it is used both scientifically and metaphorically to describe layers of time.
  • In practical terms, understanding 地層 is vital for construction, disaster prevention, and archaeology, as it reveals the stability and history of the ground.

The Japanese word 地層 (ちそう - chisou) is a fundamental geological term that refers to a layer of rock, soil, or sediment that has accumulated over vast periods of time. In English, we typically translate this as 'stratum' or 'geological layer.' This term is essential for understanding how the Earth's crust is structured and how history is literally written into the ground beneath our feet. When you look at a cliffside or a roadcut and see distinct horizontal bands of different colors and textures, you are looking at 地層. Each band represents a specific era in the Earth's history, containing clues about the climate, life forms, and environmental conditions of that time.

Etymology
Composed of 地 (earth/ground) and 層 (layer/stratum).
Scientific Context
Used in stratigraphy to analyze the chronological order of rock formation.
Visual Description
Visible as horizontal stripes in mountains, canyons, and excavation sites.

この地層からは、恐竜の化石が見つかることが多いです。(Kono chisou kara wa, kyouryuu no kaseki ga mitsukaru koto ga ooi desu.)
Translation: Fossils of dinosaurs are often found in this geological layer.

Understanding 地層 is not just for scientists; it is a word that appears in elementary school textbooks across Japan. Children learn about how water carries sand and mud to the sea, where it settles and eventually hardens into rock layers. This process, known as 堆積 (taiseki - sedimentation), is the primary way 地層 are formed. Because Japan is a volcanic and tectonically active island nation, the 地層 here are often complex, tilted, or folded, providing a rich field for geological study. The word carries a sense of 'deep time,' reminding us that the ground is a record of millions of years of change.

古い地層ほど、下のほうにあります。(Furui chisou hodo, shita no hou ni arimasu.)
Translation: The older the geological layer, the further down it is located.

Key Components
Sediment (mud, sand, gravel), pressure over time, and mineral composition.
Common Locations
Grand Canyon, riverbanks, coastal cliffs, and construction dig sites.

地震によって地層がずれ、断層ができました。(Jishin ni yotte chisou ga zure, dansou ga dekimashita.)
Translation: The earthquake caused the geological layers to shift, creating a fault.

美しい地層の縞模様が見えます。(Utsukushii chisou no shimamoyou ga miemasu.)
Translation: You can see the beautiful striped patterns of the geological layers.

Using the word 地層 correctly involves understanding its specific scientific application as well as its occasional metaphorical use. Primarily, it is a noun used in descriptive sentences about geography, history, and science. It is often paired with verbs like 見る (to see), 調べる (to investigate), or 重なる (to pile up/overlap). When you are describing the physical appearance of the ground, 地層 is the most precise term to use for the visible banding of earth.

Grammar Pattern 1
[Place] の [地層] — The geological layer of [Place].
Grammar Pattern 2
[地層] が [露出する] — The geological layer is exposed.

In a classroom setting, you might hear a teacher say, 'Let's look at the 地層 in this diagram.' In this context, it is a neutral, technical term. However, in literature or high-level journalism, 地層 can be used metaphorically to describe layers of history or memory. For example, 'the 地層 of history' (歴史の地層) refers to how different eras of a city or culture are built upon one another. This usage implies that the past is not gone, but simply buried beneath the present, waiting to be excavated.

都会の地下には、歴史の地層が眠っています。(Tokai no chika ni wa, rekishi no chisou ga nemutte imasu.)
Translation: Beneath the city, layers of history lie dormant.

When discussing natural disasters, particularly landslides or earthquakes, 地層 is used to explain the stability of the ground. Engineers look at the 地層 to determine if the soil is firm enough for a building. If the 地層 is weak or contains a lot of moisture, it might be prone to liquefaction. Therefore, the word appears frequently in safety reports and construction planning. It is also common in environmental science when discussing how pollutants seep through different layers of the earth to reach groundwater.

工事の前に、地下の地層を調査します。(Kouji no mae ni, chika no chisou o chousa shimasu.)
Translation: Before construction, we will investigate the underground geological layers.

The word 地層 is most commonly encountered in educational, scientific, and news contexts. In Japan, it is a staple of the 'Rika' (Science) curriculum starting in upper elementary school. Students often go on field trips to riverbanks or coastal areas to observe 地層 firsthand. Consequently, any Japanese adult will recognize the word and associate it with school science projects and the study of fossils.

Educational Settings
Science textbooks, museums, and educational TV programs like NHK for School.
Tourism
National parks with canyons or unique rock formations (e.g., Izu Oshima's 'Baumkuchen' strata).

In the news, 地層 appears during reports on geological discoveries, such as the finding of a new fossil or the naming of a geological age. It also surfaces during natural disaster reporting. For instance, after a major earthquake, geologists might explain how the 地層 shifted. Similarly, after heavy rain, news anchors might discuss how certain 地層 are prone to landslides. This makes the word part of the essential vocabulary for understanding environmental risks in Japan.

ニュース：新しい地層の発見により、地球の歴史が書き換えられるかもしれません。(Newusu: Atarashii chisou no hakken ni yori, chikyuu no rekishi ga kakikaerareru kamoshiremasen.)
Translation: News: Due to the discovery of a new geological layer, the history of the Earth may be rewritten.

Museums, especially natural history museums, are prime locations for this word. You will see it on plaques next to rock samples or fossil displays. In these contexts, it is often paired with specific geological periods like 'Cretaceous' (白亜紀) or 'Jurassic' (ジュラ紀). If you visit a place like the National Museum of Nature and Science in Tokyo, you will see 地層 used extensively to explain Japan's volcanic origins and its placement on tectonic plates.

One of the most frequent mistakes learners make is confusing 地層 (chisou) with other words that contain the character 層 (sou), which means 'layer' or 'stratum.' While 'sou' is a versatile suffix, 'chisou' is specifically geological. For example, learners might accidentally use 'chisou' when they mean 階層 (kaisou), which refers to social classes or hierarchical layers in a system. You cannot say 'the chisou of society'; you must use 'kaisou.'

Incorrect
社会の地層 (Shakai no chisou) — The geological layer of society.
Correct
社会の階層 (Shakai no kaisou) — The social hierarchy.

Another common point of confusion is between 地層 and 断層 (dansou). While they are related, they mean different things. 地層 is the layer itself, whereas 断層 is a 'fault'—a crack in the earth's crust where the 地層 have shifted or broken. If you are talking about the cause of an earthquake, you are likely talking about a 断層. If you are talking about the stripes in a rock, you are talking about 地層.

間違いやすい例：この山には大きな断層（×地層）があって、地震が起きやすいです。(Machigai yasui rei: Kono yama ni wa ookina dansou (not chisou) ga atte, jishin ga okiyasui desu.)
Translation: Common mistake: This mountain has a large fault (not geological layer), so earthquakes happen easily.

Additionally, learners sometimes confuse 地層 with 地盤 (jiban). 地盤 refers to the 'ground' or 'foundation' in terms of its strength and stability for building. While a 地層 makes up the 地盤, they are used differently. You 'strengthen the jiban' (地盤を固める), but you 'observe the chisou' (地層を観察する). Using 'chisou' when you mean the structural foundation of a house would sound unnatural to a native speaker.

To fully master 地層, it is helpful to understand its relationship with other geological and 'layer' related terms. The most direct synonym in a scientific context is 層位 (soui), which refers to the stratigraphic position of a layer, though this is much more technical and rarely used in daily conversation. Another related term is 堆積物 (taisekibutsu), meaning 'sediment.' Sediment is the material that eventually hardens to become a 地層.

地殻 (chikaku)
The Earth's crust. This is the entire outer shell of the Earth, which contains all the 地層.
岩盤 (ganban)
Bedrock. This refers to the solid rock layer beneath the looser soil and sediment.

In terms of 'layers' in general, you should know 層 (sou) as a standalone suffix. It is used in words like オゾン層 (ozon-sou) for the ozone layer, 大気層 (taiki-sou) for atmospheric layers, and 深層 (shinsou) for deep layers (often used metaphorically, like 'the depths of the mind'). While 地層 is specific to the ground, these other words show how the concept of 'layering' is applied across Japanese vocabulary.

比較：地層は地面の層ですが、大気層は空の層です。(Hikaku: Chisou wa jimen no sou desu ga, taikisou wa sora no sou desu.)
Translation: Comparison: 'Chisou' is a layer of the ground, while 'taikisou' is a layer of the atmosphere.

Finally, consider 土壌 (dojou), which means 'soil.' While 地層 refers to the structured layers of rock and earth, 土壌 specifically refers to the top layer of earth that supports plant life. If you are gardening, you talk about 土壌. If you are looking at the history of the Earth in a cliff, you talk about 地層. Distinguishing between these terms will make your Japanese sound much more precise and sophisticated.

چقدر رسمی است؟

سطح دشواری

گرامر لازم

Noun + の + Noun (Possessive/Descriptive)

~によって (By means of / Due to)

~から ~が見つかる (Found from ~)

~が重なる (Intransitive verb usage)

~を調べる (Transitive verb usage)

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مثال‌ها بر اساس سطح

1

これはきれいな地層です。

This is a beautiful geological layer.

Simple noun + desu structure.

2

山に地層があります。

There are geological layers in the mountain.

Using 'arimasu' for existence.

3

地層を見ます。

I look at the geological layers.

Direct object with 'o'.

4

地層は古いです。

The geological layers are old.

Adjective 'furui' describing the noun.

5

地層はどこですか。

Where are the geological layers?

Asking for location.

6

地層のえをかきます。

I draw a picture of geological layers.

Possessive 'no' connecting two nouns.

7

地層はすごいです。

The geological layers are amazing.

Expressing an opinion.

8

地層、一、二、三。

Geological layers: one, two, three.

Basic counting.

1

理科の授業で地層を勉強しました。

I studied geological layers in science class.

Past tense 'benkyou shimashita'.

2

この地層は、砂と石でできています。

This geological layer is made of sand and stones.

'~de dekite iru' (made of).

3

崖に行くと、地層が見えます。

If you go to the cliff, you can see the geological layers.

Conditional '~to' (when/if).

4

古い地層は下にあります。

The old geological layers are at the bottom.

Positioning words.

5

地層の中に貝の化石がありました。

There was a shell fossil inside the geological layer.

'~no naka ni' (inside).

6

地層の色が違いますね。

The colors of the geological layers are different, aren't they?

Sentence-ending particle 'ne'.

7

川の近くで地層を探しました。

I searched for geological layers near the river.

Searching verb 'sagashimashita'.

8

地層の写真を撮ってもいいですか。

May I take a photo of the geological layers?

'~te mo ii desu ka' (asking permission).

1

地層を調べることで、昔のことがわかります。

By investigating geological layers, we can understand the past.

'~koto de' (by means of).

2

長い年月をかけて、地層が積み重なりました。

Over many years, the geological layers piled up.

'~o kakete' (taking time).

3

この地層は、火山灰でできているそうです。

I heard that this geological layer is made of volcanic ash.

Reporting hearsay '~sou desu'.

4

地震のせいで、地層が曲がってしまいました。

Because of the earthquake, the geological layers ended up bending.

'~no sei de' (due to a negative cause) and '~te shimau'.

5

地層の観察は、とても興味深いです。

Observing geological layers is very interesting.

Noun phrase 'no kansatsu'.

6

どの地層が一番古いか、知っていますか。

Do you know which geological layer is the oldest?

Embedded question with 'ka'.

7

地層には、地球の歴史が刻まれています。

The history of the Earth is carved into the geological layers.

Passive form 'kizamarete imasu'.

8

この場所の地層は、非常に珍しいです。

The geological layers in this location are extremely rare.

Adverb 'hijou ni' (extremely).

1

地層のずれを分析して、活断層の有無を確認する。

Analyze the shift in geological layers to confirm the presence of active faults.

Formal 'dictionary form' for reports.

2

堆積岩が層を成している状態を地層と呼びます。

The state in which sedimentary rocks form layers is called a 'chisou'.

'~to yobimasu' (is called).

3

地層の露出している崖は、地質学的に重要だ。

Cliffs where geological layers are exposed are geologically important.

Relative clause 'roshutsu shite iru'.

4

ボーリング調査によって、地下の地層構造が明らかになった。

Through drilling surveys, the underground geological structure became clear.

'~ni yotte' (through/by) and 'akiraka ni naru'.

5

この地層が形成された当時は、ここは海だった。

At the time this geological layer was formed, this place was a sea.

Passive 'keisei sareta' and 'touji' (at that time).

6

地層の縞模様は、季節や環境の変化を反映している。

The striped patterns of the geological layers reflect changes in seasons and environment.

Transitive verb 'han'ei shite iru'.

7

水平だった地層が、地殻変動で垂直に近くなっている。

Geological layers that were horizontal have become nearly vertical due to crustal movements.

Contrast between 'suihei' (horizontal) and 'suichoku' (vertical).

8

地層から採取されたサンプルをラボで分析する。

Analyze the samples collected from the geological layers in the lab.

Passive participle 'saishu sareta'.

1

不整合な地層の境界は、長い侵食の歴史を物語っている。

The boundaries of unconformable geological layers tell a story of a long history of erosion.

Metaphorical 'monogatatte iru' (tells a story).

2

地層累重の法則に基づき、年代測定が行われる。

Dating is performed based on the law of superposition of strata.

'~ni motozuki' (based on).

3

都市開発において、軟弱な地層の把握は不可欠である。

In urban development, understanding weak geological layers is indispensable.

Formal 'fukaketsu' (indispensable).

4

その論文は、特定の地層における微化石の分布を論じている。

The paper discusses the distribution of microfossils in specific geological layers.

Academic verb 'ronjite iru'.

5

地層の逆転現象は、激しい地殻変動の証拠である。

The phenomenon of overturned strata is evidence of intense crustal movement.

Scientific term 'gyakuten genshou'.

6

気候変動の記録が、氷床の地層の中に保存されている。

Records of climate change are preserved within the layers of the ice sheet.

Passive 'hozon sarete iru'.

7

地層の色彩の変化は、当時の酸化状態を示唆している。

Changes in the color of the geological layers suggest the oxidation state at the time.

Academic verb 'shisa shite iru'.

8

広域にわたる地層の対比により、大陸移動説が裏付けられた。

The theory of continental drift was supported by the correlation of geological layers over a wide area.

'~ni yori' and 'uradzukerareta' (was supported/proven).

1

人類世という新たな地層の区分が、学術的に検討されている。

The classification of a new geological layer called the Anthropocene is being academically considered.

Passive 'kentou sarete iru'.

2

地層とは、地球という巨大な書物に記された、沈黙の年代記である。

Geological layers are a silent chronicle inscribed in the massive book that is the Earth.

Metaphorical definition using 'to wa'.

3

テフラの地層同定は、広域テフラ学における根幹をなす手法だ。

The identification of tephra layers is a fundamental method in tephrochronology.

Highly technical terminology.

4

地層の微細なラミナ構造から、当時の潮汐サイクルを復元する。

Reconstruct the tidal cycles of the time from the fine lamina structures of the geological layers.

Technical verb 'fukugen suru'.

5

堆積環境の変遷が、地層の相変化として克明に記録されている。

The transition of the sedimentary environment is clearly recorded as phase changes in the geological layers.

Adverb 'kokumei ni' (clearly/minutely).

6

地層の歪みは、プレート境界における応力の蓄積を物語る。

The distortion of geological layers speaks to the accumulation of stress at plate boundaries.

Abstract noun 'ou-ryoku' (stress).

7

深海堆積物の地層コアは、古気候学における最も純粋なアーカイブだ。

Geological cores of deep-sea sediments are the purest archives in paleoclimatology.

Loanword 'aakaibu'.

8

地層の連続性が断たれた箇所に、かつての激甚災害の痕跡を見る。

In the places where the continuity of geological layers is broken, we see traces of past catastrophic disasters.

Formal 'gekijin saigai'.

مترادف‌ها

層 堆積層 岩層 地殻 土層

متضادها

大気 表面

ترکیب‌های رایج

地層を観察する (Observe layers)
地層が重なる (Layers pile up)
地層が露出する (Layers are exposed)
地層を調査する (Investigate layers)
古い地層 (Old layers)
水平な地層 (Horizontal layers)
地層のずれ (Shift in layers)
地層の縞模様 (Striped pattern of layers)
地層から化石が出る (Fossils come from layers)
地層を分析する (Analyze layers)

عبارات رایج

地層の重なり (The overlapping of strata)
地層の形成 (Formation of strata)
地層の対比 (Correlation of strata)
地層の逆転 (Inversion of strata)
地層の境界 (Boundary of strata)
地層の厚さ (Thickness of strata)
地層の年代 (Age of strata)
地層の分布 (Distribution of strata)
地層の傾斜 (Tilt of strata)
地層の構造 (Structure of strata)

اغلب اشتباه گرفته می‌شود با

地層 vs 断層 (Dansou)

A fault/crack vs. the layer itself.

地層 vs 階層 (Kaisou)

Social/systemic hierarchy vs. earth layers.

地層 vs 地盤 (Jiban)

Structural foundation vs. geological strata.

اصطلاحات و عبارات

"歴史の地層 (Layers of history)"
"記憶の地層 (Layers of memory)"
"文化の地層 (Layers of culture)"
"地層のように積み重なる (To pile up like geological layers)"
"地層を掘り起こす (To dig up geological layers - often metaphorical for uncovering the past)"
"地層に眠る (To sleep in the geological layers - used for fossils or ancient ruins)"
"地層が語る (The geological layers tell a story)"
"地層を読み解く (To decipher the geological layers)"
"地層の奥深く (Deep within the geological layers)"
"地層の裂け目 (A rift in the geological layers)"

به‌راحتی اشتباه گرفته می‌شود

地層 vs

地層 vs

地層 vs

地層 vs

地層 vs

الگوهای جمله‌سازی

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نحوه استفاده

avoid

Don't use it for layers of clothing (use 'kasane') or layers of a cake (use 'sou').

nuance

Strictly scientific/geological, but highly recognizable to all Japanese speakers due to education.

اشتباهات رایج
  • Using 'Chisou' for layers of a cake.
  • Confusing 'Chisou' (layer) with 'Dansou' (fault).
  • Mispronouncing with a rising accent on 'sou'.
  • Using 'Chisou' to describe social hierarchy.
  • Writing the kanji for 'Sou' (層) with the wrong number of strokes.

نکات

Kanji Breakdown

Focus on 'Chi' (Earth) and 'Sou' (Layer). If you know 'Chikatetsu' (Subway), you already know 'Chi'!

Look for Stripes

Whenever you see stripes in a rock wall, say 'Chisou' out loud to reinforce the word.

Noun Only

Remember that 'Chisou' is a noun. You don't 'chisou-suru'; you 'chisou o miru'.

Science News

Check Japanese science news for 'Chisou' to see how it's used in real-world discoveries.

Chisou vs. Kaisou

Earth = Chisou. Society = Kaisou. Don't mix them up!

Chibanian

Search for 'Chibanian' in Japanese to learn about Japan's most famous geological layer.

Flat Accent

Keep the pitch steady. 'Chi-sou' is flat, like the layers themselves!

Kanji Practice

The kanji for 'Sou' (層) is complex. Practice the 14 strokes carefully.

Documentaries

Watch NHK nature documentaries; they use the word 'Chisou' very frequently.

Metaphors

Try using 'Rekishi no chisou' in your writing to sound more like a native speaker.

حفظ کنید

ریشه کلمه

Sino-Japanese (Kango)

بافت فرهنگی

Places like Izu Oshima are famous for their 'Baumkuchen' geological layers, which are a major tourist attraction.

Japanese students learn about 地層 in the 6th grade of elementary school.

Understanding the local 地層 is considered part of 'bosai' (disaster prevention) awareness.

تمرین در زندگی واقعی

موقعیت‌های واقعی

شروع‌کننده‌های مکالمه

"この崖の地層、きれいだと思いませんか？ (Don't you think the layers in this cliff are beautiful?)"

"地層から化石を見つけたことがありますか？ (Have you ever found a fossil in a geological layer?)"

"日本の地層は、火山の影響が多いそうですね。 (I heard Japanese geological layers are heavily influenced by volcanoes, right?)"

"学校の理科で地層の実験をしましたか？ (Did you do experiments with geological layers in school science?)"

"ここの地層は、何年前のものなんでしょう。 (I wonder how many years old the layers here are.)"

موضوعات نگارش

今日見た地層の様子を詳しく書いてみましょう。 (Describe the appearance of the geological layers you saw today in detail.)

もし自分が地層の一部だとしたら、どんな歴史を見てきたと思いますか？ (If you were part of a geological layer, what history do you think you would have seen?)

「歴史の地層」という言葉を使って、自分の町の歴史について書いてください。 (Write about the history of your town using the phrase 'layers of history'.)

地層がどのようにしてできるか、日本語で説明してください。 (Explain in Japanese how geological layers are formed.)

地層の観察がなぜ大切なのか、あなたの考えを書いてください。 (Write your thoughts on why observing geological layers is important.)

سوالات متداول

10 سوال

英語では 'stratum'（単数形）または 'strata'（複数形）、あるいは一般的に 'geological layer' と言います。

地層は積み重なった土砂の層そのものを指し、断層はその地層が地震などで割れてずれた部分を指します。

長い年月をかけて、川が運んできた砂や泥が海の底などに積み重なり、その重みで固まってできます。

その地層ができた当時の環境（海だったか陸だったか）や、どんな生き物がいたか（化石）がわかります。

比喩的な表現で、ある場所に積み重なった長い歴史や時間の流れを、地面の層に例えた言葉です。

崖や、道路を作るために山を削った場所（法面）、海岸などでよく見ることができます。

層を作っている材料（砂、泥、火山灰など）や、含まれている成分が違うためです。

日本の小学校では、主に6年生の理科の授業で地層について詳しく学習します。

はい、基本的には新しい地層ほど上にあり、古い地層ほど下にあります。これを「地層累重の法則」と言います。

現代の地層には人間が捨てたプラスチックが含まれており、これを「人類世」の地層と呼ぶことがあります。

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محتوای مرتبط

واژه‌های بیشتر Science

吸収

A1

عمل جذب کردن یا مکیدن چیزی، مانند مایع، نور یا دانش. این کلمه هم فرآیندهای فیزیکی و هم استعاره‌ای را توصیف می‌کند.

分析

B1

تجزیه و تحلیل داده ها روندهای غیرمنتظره ای را نشان داد.

原子

A1

اتم واحد اصلی سازنده تمام مواد است. این کوچکترین واحد یک عنصر شیمیایی است.

引力

A1

این نیروی فیزیکی است که اشیاء را به سمت یکدیگر می کشد. همچنین برای توصیف یک جذابیت قدرتمند استفاده می شود.

細菌

A1

موجودات تک‌سلولی میکروسکوپی که در همه جا یافت می‌شوند. برخی بیماری‌زا و بسیاری مفید هستند.

繁殖

A1

تولید مثل یا تکثیر حیوانات، گیاهان یا میکروارگانیسم‌ها. این اصطلاح برای انسان‌ها استفاده نمی‌شود.

炭素

A1

کربن یک عنصر شیمیایی است که پایه و اساس زندگی محسوب می‌شود. در موادی مانند زغال و الماس یافت می‌شود.

触媒

A1

کاتالیزور. ماده‌ای که واکنش شیمیایی را تسریع می‌کند، یا شخص/چیزی که باعث تغییر سریع می‌شود.

塩素

A1

کلر یک عنصر شیمیایی است که برای ضدعفونی کردن آب و ساختن سفیدکننده استفاده می‌شود.

解明

A1

روشن‌سازی، کشف. عمل حل یک معما یا روشن کردن یک مشکل پیچیده.

مفید بود؟

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