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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Woordenschat en spreektips bij deze les
Deze spreekles op niveau C1 is gebaseerd op de video “KS3 Chemistry - The periodic Table”. Deze woorden komen het vaakst terug: element, table, periodic, reactive, metals. Deze video bevat 33 zinnen en 599 woorden om na te spreken. Het gesproken deel duurt 3:42. De spreker praat in een natuurlijk tempo van ongeveer 162 woorden per minuut, dicht bij een alledaags gesprek. 84% van de woorden hoort bij de 3.000 meest gebruikte Engelse woorden; de rest kun je beter vooraf bekijken.
Belangrijke woorden in deze video
De 15 moeilijkste woorden uit de video, met uitspraak en betekenis:
| Woord | Uitspraak | Betekenis |
|---|---|---|
| proton zelfstandig naamwoord | /ˈpɹoʊ.tɑn/ | proton |
| atom zelfstandig naamwoord | /ˈætəm/ | atoom |
| sodium zelfstandig naamwoord | /ˈsəʊ.di.əm/ | natrium |
| predict werkwoord | /pɹɪˈdɪkt/ | voorspellen |
| alkali zelfstandig naamwoord | /ˈæl.kəˌlaɪ/ | alkali |
| flashcard zelfstandig naamwoord | /ˈflæʃˌkɑɹd/ | steekkaart |
| fluorine zelfstandig naamwoord | /ˈflʊ(ə)ɹˌin | fluor |
| halogen zelfstandig naamwoord | /ˈhæl.ə.d͡ʒən/ | halogeen |
| neutron zelfstandig naamwoord | /ˈnu.tɹɑn/ | neutron |
| rubidium zelfstandig naamwoord | /ˌɹuːˈbɪd.i.əm/ | rubidium |
| lithium zelfstandig naamwoord | /ˈlɪθi.əm/ | lithium |
| browse werkwoord | /bɹaʊz/ | doorbladeren |
| playlist zelfstandig naamwoord | /ˈpleɪˌlɪst/ | afspeellijst, playlist |
| violently bijwoord | /ˈvaɪ(ə)ləntli/ | gewelddadig |
| litter zelfstandig naamwoord | /ˈlɪt.ɚ/ | strooisel |
Phrasal verbs die je zult horen
| Woord | Betekenis |
|---|---|
| go down werkwoord | afdalen |
Uitspraak om op te letten
De spreker gebruikt 8 samentrekkingen en verkorte vormen, zoals they're, don't, haven't. Spreek ze kort uit, zoals je ze hoort.
- De klanken “sh” en “zh”: flashcard /ˈflæʃˌkɑɹd/, combinations /kɑmbɪˈneɪʃənz/
- Lange woorden — let op de klemtoon: periodic /ˌpɪɹiˈɑdɪk/, rubidium /ˌɹuːˈbɪd.i.əm/, violently /ˈvaɪ(ə)ləntli/, combinations /kɑmbɪˈneɪʃənz/, horizontal /ˌhoɹəˈzɑn.təl/
Zo oefen je met deze video
- Luister de hele video één keer zonder te spreken en noteer de woorden die je niet kent.
- Begin op 0,75× snelheid, spreek zin voor zin na en ga terug naar normale snelheid zodra het makkelijk gaat.
- Neem jezelf op en vergelijk met het origineel; let daarbij op woorden als proton, atom, sodium.
Wat is de Shadowing-techniek?
Shadowing is een wetenschappelijk onderbouwde taalleermethode die oorspronkelijk is ontwikkeld voor professionele tolkentraining en gepopulariseerd door polyglot Dr. Alexander Arguelles. De methode is eenvoudig maar krachtig: je luistert naar native Engelse audio en herhaalt het onmiddellijk hardop — als een schaduw die de spreker volgt met slechts 1–2 seconden vertraging. In tegenstelling tot passief luisteren of grammaticadrills, dwingt shadowing je hersenen en mondspieren om echte spraakpatronen tegelijkertijd te verwerken en te reproduceren. Onderzoek toont aan dat het de uitspraaknauwkeurigheid, intonatie, ritme, verbonden spraak, luisterbegrip en spreekvaardigheid aanzienlijk verbetert — waardoor het een van de meest effectieve methoden is voor IELTS Speaking-voorbereiding en echte Engelse communicatie.