Shadowing Practice: KS3 Chemistry - The periodic Table - Learn English Speaking with Video

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In this video we're going to learn about the periodic table.
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So we'll cover what the periodic table tells us about the structure of atoms in different elements, how the table organises elements into metals and non-metals,
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what groups and periods are, and then also how patterns in reactions can be predicted using the periodic table.
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Let's begin by looking at what the periodic table tells us about different elements.
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Now the periodic table organises all of the known elements, and everything in the universe is created from different combinations of the elements in this table.
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Each element is shown in a separate box, so for instance this box shows copper and this one shows oxygen.
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If we use sodium as an example, we can see that every box contains three pieces of key information.
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Firstly we can see the one or two letter symbol for each element, in this case it's Na which stands for sodium.
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Next we can also see the number of protons each atom of that element has.
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Then lastly we can see this larger number here
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which tells us the total number of protons plus neutrons in an atom of that element.
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So now let's move on to see how the periodic table organises elements.
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Just like a book the periodic table is read from left to right and from top to bottom, with the elements arranged in order of an increasing number of protons.
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Sometimes you might see a zigzag line running along here, and this line separates the metals, shown here in orange, from the non-netals here on the right, shown in blue.
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Now the table's organised into vertical columns called groups and horizontal rows called periods.
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So starting on the far left, we have group 1, then groups 2, 3, 4, 5, 6, and 7.
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And then at the end, rather than group 8, it goes to group 0.
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Group 1 elements are known as the alkali metals, whilst group 7 are the halogens, and group 0 are the noble gases.
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This block in the middle here are all metals, but you don't need to worry about their group numbers, so just remember to skip them when you're counting your groups.
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Then to finish up, let's take a look at how patterns in reactions can be predicted using the periodic table.
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The first thing to know is that the elements within a group usually all have similar chemical properties.
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As an example, all the elements in group 1 here react strongly with water, and they're all soft and shiny.
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Meanwhile, all the elements in group 0 are really unreactive, which basically means that they're very unlikely to react with anything else.
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There are also patterns within groups though.
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In the case of group 1, they become more reactive as you go down the group.
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What this means is that even though all the elements are reactive, the elements lower down in group 1 react much more strongly than those higher up in the group.
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For instance, when lithium reacts with water it just fizzes a bit, but when rubidium reacts with water it explodes violently.
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On the other hand, if we look at group 7, the elements become less reactive as you go down the group.
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So fluorine is the most reactive while astartine is the least reactive.
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If you haven't heard yet you can find all of our videos on our website cognito.org.
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You'll also find questions, flashcards, exam style questions and past papers.
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And we track all of your progress so that you always know what to study next.
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sign up for free by clicking here or browse our playlist here on YouTube.

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Bu dersin kelimeleri ve konuşma notları

Bu C1 seviyesindeki konuşma dersi “KS3 Chemistry - The periodic Table” videosuna dayanıyor. En çok tekrarlanan kelimeler: element, table, periodic, reactive, metals. Bu videoda gölgeleme çalışması için 33 cümle ve 599 kelime var. Konuşma bölümü 3:42 sürüyor. Konuşmacı dakikada yaklaşık 162 kelimeyle, günlük konuşmaya yakın doğal bir hızda konuşuyor. Kelimelerin %84’i İngilizcede en sık kullanılan 3.000 kelime arasında; geri kalanına başlamadan önce bakmakta fayda var.

Bu videodaki önemli kelimeler

Videodaki en ileri düzey 15 kelime, telaffuzu ve anlamıyla:

KelimeTelaffuzAnlam
reactive sıfat/ɹiːˈæktɪv/gerici
proton isim/ˈpɹoʊ.tɑn/proton
atom isim/ˈætəm/atom
sodium isim/ˈsəʊ.di.əm/sodyum
predict fiil/pɹɪˈdɪkt/öngörmek, tahmin etmek
alkali isim/ˈæl.kəˌlaɪ/alkali
fluorine isim/ˈflʊ(ə)ɹˌinflor
halogen isim/ˈhæl.ə.d͡ʒən/halojen
neutron isim/ˈnu.tɹɑn/nötron
rubidium isim/ˌɹuːˈbɪd.i.əm/rubidyum
zigzag isim/ˈzɪɡ.zæɡ/zikzak
lithium isim/ˈlɪθi.əm/lityum
browse fiil/bɹaʊz/gözden geçirmek
playlist isim/ˈpleɪˌlɪst/çalma listesi, oynatma listesi
litter isim/ˈlɪt.ɚ/altlık

Dikkat edilecek telaffuzlar

Konuşmacı they're, don't, haven't gibi kısaltılmış biçimleri 8 kez kullanıyor. Bunları duyduğunuz gibi kısa söyleyin.

  • “sh” ve “zh” sesleri: flashcard /ˈflæʃˌkɑɹd/, combinations /kɑmbɪˈneɪʃənz/
  • Uzun kelimeler — vurguyu doğru yere koyun: periodic /ˌpɪɹiˈɑdɪk/, rubidium /ˌɹuːˈbɪd.i.əm/, violently /ˈvaɪ(ə)ləntli/, combinations /kɑmbɪˈneɪʃənz/, horizontal /ˌhoɹəˈzɑn.təl/

Bu videoyla nasıl çalışılır

  1. Videonun tamamını konuşmadan bir kez dinleyin ve bilmediğiniz kelimeleri not edin.
  2. 0,75× hızla başlayın, cümle cümle tekrar edin ve kolaylaşınca normal hıza dönün.
  3. Kendinizi kaydedin ve orijinaliyle karşılaştırın; reactive, proton, atom gibi kelimelere özellikle dikkat edin.

Gölgeleme Tekniği Nedir?

Gölgeleme, başlangıçta profesyonel tercüman eğitimi için geliştirilen ve çok dilli Dr. Alexander Arguelles tarafından popüler hale getirilen, bilim destekli bir dil öğrenme tekniğidir. Yöntem basit ama güçlüdür: ana dili İngilizce olan bir sesi dinler ve hemen yüksek sesle tekrar edersiniz — konuşmacıyı 1-2 saniye gecikmeyle takip eden bir gölge gibi. Pasif dinleme veya dilbilgisi alıştırmalarının aksine, gölgeleme beyninizi ve ağız kaslarınızı gerçek konuşma kalıplarını eşzamanlı olarak işlemeye ve yeniden üretmeye zorlar. Araştırmalar, telaffuz doğruluğu, tonlama, ritim, bağlı konuşma, dinleme anlama ve konuşma akıcılığını önemli ölçüde geliştirdiğini göstermektedir — bu da onu IELTS Konuşma hazırlığı ve gerçek dünya İngilizce iletişimi için en etkili yöntemlerden biri yapar.

Shadowing tekniği: adım adım eksiksiz rehberi okuyun →