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41
Periodic table of the elements
  • Chemistry

Periodic table of the elements

Periodic table, in full periodic table of the elements, in chemistry, the organized array of all the chemical elements in order of increasing atomic number—i.e., the total number of protons in the atomic nucleus. When the chemical elements are thus arranged, there is a recurring pattern called the “periodic law” in their properties, in which elements in the same column (group) have similar properties. The initial discovery, which was made by Dmitry I. Mendeleyev in the mid-19th century, has been of inestimable value in the development of chemistry.

  • Image
  • All levels
  • English
Andrei Scherbak
Andrei Scherbak
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30
sdsds
  • Chemistry

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  • Image
  • level.high school
  • English
Asia Posani
Asia Posani
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24
What time is it?
  • English

What time is it?

This lesson helps learners understand how to ask for and tell the time in English. Students will learn key expressions such as o’clock, half past, quarter past/to, and how to use a.m. and p.m. They will also practice common questions and answers: “What time is it? – It’s …” and “When does it start? – At …”. The lesson includes: Vocabulary and numbers 1–59 Different ways of telling the time (analog & digital clocks) Using past / to for minutes Expressions with in the morning/afternoon/evening, at night Daily routine activities with time references Activities involve dialogues, matching clocks with the correct time, and role plays to practice schedules and appointments. By the end of the lesson, learners will be able to confidently tell and ask the time in English.

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  • Beginner
  • English
Oleg Ivanov
Oleg Ivanov
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24
Telling the Time: What time is it?
  • English

Telling the Time: What time is it?

This lesson helps learners understand how to ask for and tell the time in English. Students will learn key expressions such as o’clock, half past, quarter past/to, and how to use a.m. and p.m. They will also practice common questions and answers: “What time is it? – It’s …” and “When does it start? – At …”.

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  • Elementary
  • English
Oleg Ivanov
Oleg Ivanov
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19
Rhythm and Meter in English Poetry
  • Literature

Rhythm and Meter in English Poetry

English poetry employs five basic rhythms of varying stressed (/) and unstressed (x) syllables. The meters are iambs, trochees, spondees, anapests and dactyls. In this document the stressed syllables are marked in boldface type rather than the tradition al "/" and "x." Each unit of rhythm is called a "foot" of poetry. The meters with two-syllable feet are - IAMBIC (x /) : That timeof yearthoumaystin mebehold - TROCHAIC (/ x): Tellmenotin mournful numbers - SPONDAIC (/ /): Break, break, break/ On thy coldgraystones, O Sea! - ANAPESTIC (x x/): And thesoundof a voicethat is still - DACTYLIC (/ x x): Thisis the forest primeval, the murmuring pinesand the hemlock (a trochee replaces the final dactyl)

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  • Pre-Intermediate
  • English
Andrei Scherbak
Andrei Scherbak

Other lessons

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94
Squid Game
  • English

Squid Game

English lesson that is related to the Netflix tv series "Squid Game".

  • Theory with exercises
  • Pre-Intermediate
  • English
Erik Silverman
Erik Silverman
0
72
Podcast - Coffee Drinking in Australia
  • English

Podcast - Coffee Drinking in Australia

Вначале идет прослушивание подкаста, после идет текст подкаста, где вы можете посмотреть моменты, которые не поняли, далее идет мини опрос на понимание подкаста.

  • Audio lessons
  • Pre-Intermediate
  • English
Анжелика Луговская
Анжелика Луговская
0
72
BRITISH HOUSES
  • English

BRITISH HOUSES

There are 22 million homes in Britain - big homes and small homes, old cottages and new buildings, houses and flats. (Americans say "apartment" but British people say "flat"). Many British people love old houses and these are often more expensive than modern ones. They also love gardening and you will see gardens everywhere you go: in towns, villages and out in the country. Some are very small with just one tree and a few flowers.

  • Theory with exercises
  • Pre-Intermediate
  • English
Eugeniia Klimutina
Eugeniia Klimutina
0
72
Clothes
  • English

Clothes

In this class we will discuss clothes and colors

  • Theory with exercises
  • Elementary
  • English
Maria  Nekrasova
Maria Nekrasova
0
69
Health
  • English

Health

Health - illnesses - how to teat illnesses Covid + omicron variend - reading + listening

  • Theory with exercises
  • Pre-Intermediate
  • English
Darina Gribanova
Darina Gribanova
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65
Gastro-tourism
  • English

Gastro-tourism

In this lesson we will discuss gastro-tourism and different cuisines. Also we will discuss grammar topic such as so», «such» and other intensifiers. also we will have speaking tasks.

  • Theory with exercises
  • Intermediate
  • English
Maria  Nekrasova
Maria Nekrasova
0
65
Public speech
  • English

Public speech

In this class we will discuss what sucessfull public speech is, you experience with it, evaluate speech of other persons. Also we will discuss grammar - usage of structures to express past habits and actions.

  • Theory with exercises
  • Intermediate
  • English
Maria  Nekrasova
Maria Nekrasova