Boris Berenfeld

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Boris Berenfeld
borisbs, tutor Проф. Борис Беренфельд

Awards:

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6

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View details about the awards

Current subscription plan:

GlobalLab Starter

Native languages:

Russian

Languages:

English Russian

Subjects taught:

Biology Physics Chemistry Литература История

Interests:

Наука, Исскусство

Education:

МГУ им. Ломоносова

About me:

Мне нравиться учиться, читать, плавать, путешествовать. Из спорта люблю велосипед и моторную лодку. Люблю разговаривать с умными людьми.
- Member of schools:
- Тестовая школа
- Leader of:
- Intrepid explorer
  
  ГлобалЛаб на уроках естественно-научного цикла
  
  Любознательные
  
  Пешеходы
  
  иии
- Member of groups:
- [8bit-tech]
  
  Группа первооткрывателей
  
  Дети и роботы
  
  Класс 6Б
  
  Учимся делать проекты!
  
  Учительская
- Tests Results:
- Authored 32 projects
- Which Berry is the Most Acidic?
  
  Berries differ by the amounts of sugar and organic acids, such as citric acid and ascorbic acid (vitamin C). Which type of berry is the most acidic? Is it true that the more sour a berry, the lower is its pH? Working together in this investigation, we will find out.
  
  ГлобалЛаб
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  
  7 1 34
- Our Pets
  
  People worldwide keep pets. What kinds of pets do we keep in GlobalLab? And why? We’ll find out in this project.
  
  Проф. Борис Беренфельд
  K. Mazhurina
  ГлобалЛаб
  
  535 98 3263
- Water pH of bottled water
  
  Many people drink bottled water with and without carbonation. Let's compare the acidity of carbonated soda and water without carbonation. Let’s also see if the pH of soda changes if the bottle is left open for a long time.
  
  ГлобалЛаб
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  
  3 0 18
- pH of Your Saliva at Rest and Under Stress
  
  Everyone can recall the dry mouth we experienced before a big exam or performance. Yet when we’re alone, especially before lunch, the saliva in our mouths is very different. We’ll compare the acidity of saliva before and after meals, when alone, and in stressful situations.
  
  ГлобалЛаб
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  
  3 1 9
- Breath In, Breath Out: Does Breathing in Your Classroom Change the Quality of the Air?
  
  As we breathe, we exhale CO2. Can CO2 accumulate in closed environments like classrooms? Might air quality drop over the school day? Let’s find out.
  
  Проф. Борис Беренфельд
  K. Mazhurina
  Harvey Y.
  ГлобалЛаб
  
  7 0 25
- Soil pH
  
  Soil is a complex ecosystem that is home to many organisms, which determine its fertility. The pH of soil affects the development of organisms that inhabit it and the solubility of minerals. Working together, we can map soil pH and, at the same time, find out if the color of the soil indicates its acidity.
  
  ГлобалЛаб
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  
  2 3 13
- The Water You Drink
  
  To avoid problems with your teeth or your health in general, the pH of tap water you drink should be close to neutral. But what is the actual pH of the tap water you drink? Does the pH of tap water change over the course of the day? Does it change day by day? Or after a large rainfall or snowstorm?
  
  ГлобалЛаб
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  
  6 0 20
- pH & Temperature
  
  What if you measure the pH of a chilled solution that you just removed from the refrigerator, and somewhere else, others measured the pH of the same solution but at room temperature on a warm day? Does the temperature of a solution affect its pH? If so, what does this mean for our investigations into pH? Should we measure pH when the solutions are at the same temperature?
  
  ГлобалЛаб
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  
  12 2 16
- Souring of the Milk
  
  Fresh milk right from the cow has a pH value that is almost neutral. Gradually, however, milk becomes sour, even when it is stored in a refrigerator. In this investigation we will see if we can tell how many days old the milk is simply by measuring its pH. We will also investigate the microorganisms at work in its change in acidity.
  
  ГлобалЛаб
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  
  15 3 47
- Food Preservation and pH
  
  Sometimes people preserve fruits by adding water, sugar, and some spice to make a fruit preserve, and then putting the preserve in a tightly sealed jar. But when fruit preserves are stored in a warm place, they start fermenting, which is a chemical breakdown by microorganisms like bacteria, and they get sour. What does this process have in common with the souring of milk?
  
  ГлобалЛаб
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  
  7 0 0
- Acid Rain
  
  What is acid rain? Where does it come from? Can acid rain affect the environment? In this investigation, we will monitor the pH of rain and snow, overlaid with wind speed and direction, to get a sense of where acid rain comes from.
  
  Михаил Гантман, кандидат химических наук
  ГлобалЛаб
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  
  44 11 58
- Searching for the Most Acidic Citrus
  
  Every citrus fruit contains organic acids, such as citric acid and ascorbic acid, also known as vitamin C. Yet limes or lemons taste quite acidic while oranges or mandarins are on the sweet side. Which among citrus fruits is the "world champion" in acidity? Is there a correlation between acid taste and pH-levels? Are there variations in pH for the same citrus fruit grown in various countries, regions or climate zones. Those questions will be explored in this activity.
  
  ГлобалЛаб
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  
  30 22 63
- Natural pH indicators
  
  Litmus, methyl orange, and phenolphthalein are well-known and broadly used acid-base indicators. But did you know that some plants can also be used as indicators?
  
  Виктория Денисова, учитель
  ГлобалЛаб
  Наталья Сандецкая
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  
  91 15 353
- Plant Whisperers
  
  Plants can sometimes reveal pH. This is because some plant can live only in soils with narrow and specific ranges of pH. We’ll explore whether we can tell the pH of the soil just by the plants that grow there.
  
  ГлобалЛаб
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  Demo
  
  5 0 0
- Getting on the Same Page: Calibration
  
  When we look for answers in GlobalLab, we base our conclusions on data we all submit. But when we use probes and sensors, and since each of us uses our own instruments to collect data, how can we know whether our findings can be compared? How do we know our instruments even measure their target, in this case pH, or measure with comparable accuracy? What can be done so we can trust each other’s findings? For pH measurements scientists use a procedure called the calibration of pH probes. We check how accurately our probes and sensors measure pH by first measuring so-called ‘standard solutions,’ those with pH values we already know, since we either prepared them ourselves or purchased them from chemical catalogs.
  
  ГлобалЛаб
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  
  9 0 11
- pH of Your Local Pond or River
  
  Let’s check the acidity of the water in our river, pond or lake. Do pH levels change over the course of a day? Is there a relationship between acidity and eutrophication, when a body of water loses its oxygen and becomes a marsh?
  
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  
  4 0 9
- My Moon Journal
  
  Observe the Moon over the course of a lunar cycle and keep track of your observations in a Moon Journal.
  
  Dr. Gustavo Rojas
  
  Проф. Борис Беренфельд
  
  10 0 7
- Marine Litter .... the usual suspects at my beach
  
  In this project students (or any other person) selects an area in the local beach and collect all the litre they can find. After this, the littler is cleaned, organized and separated according to its origin and category. By doing this, students not only clean their local beach but they identify the main sources of litre so as to create effective solutions to decrease it.
  
  Проф. Борис Беренфельд
  
  2 0 16
- UV light levels around the world
  
  Is ultraviolet radiation on the same level across the globe? Are people aware of how to protect themselves from this radiation?
  
  Проф. Борис Беренфельд
  
  12 0 105
- Our Restless Earth
  
  This activity is about designing a citizen's alert programm to help your municipality raise awareness among the locals on natural hazards and how to be protected from them.
  
  Eleftheria Tsourlidaki
  Проф. Борис Беренфельд
  
  1 0 3
- Bees for the future_
  
  Travel to the heart of your community to discover the level of awareness of the importance to preserve bees in the ecosystem. Using provided questions, interview the experts about your island's flora and agricultural practices, and how they relate to the bee population; explore the data at a local and at a global levels using the data collected by your colleagues from different locations.
  
  Проф. Борис Беренфельд
  
  4 11 60
- This is Our Home
  
  What can we learn about someone by asking about their home town? Are home towns both similar and unique? What’s special about yours?
  
  Проф. Борис Беренфельд
  K. Mazhurina
  ГлобалЛаб
  
  71 14 242
- Where on Earth Are We?
  
  GlobalLab starts with a mystery — who is part of the GlobalLab community? Where do we live? What do we like? How are we similar and how do we differ?
  
  Проф. Борис Беренфельд
  K. Mazhurina
  ГлобалЛаб
  
  125 24 664
- Our Environment
  
  What natural environments do we live in? What determines an environment? Are there types of environments? Here, we’ll answer these questions and more.
  
  Проф. Борис Беренфельд
  K. Mazhurina
  ГлобалЛаб
  
  69 14 437
- Natural pH indicators
  
  Litmus, methyl orange, and phenolphthalein are well-known and broadly used acid-base indicators. But did you know that some plants can also be used as indicators?
  
  Виктория Денисова, учитель
  ГлобалЛаб
  Наталья Сандецкая
  Проф. Борис Беренфельд
  Anna Shchegoleva, Chief Editor GlobalLab
  
  3 0 22
- Noise Patrol: Day Watch, Night Watch
  
  Rarely do we take time to listen to how noisy our world can be. Stop and listen. What sounds do you hear? Day or night, quiet or loud, pleasant or abrasive - noise can be a form of pollution. Let's map noise levels and see what we discover.
  
  Проф. Борис Беренфельд
  K. Mazhurina
  Harvey Y.
  ГлобалЛаб
  
  5 4 7
- Пересчитаем спутники
  
  Попробуем определить, какие искусственные спутники Земли летают у нас над головой
  
  Yan Rauch, physics teacher
  Проф. Борис Беренфельд
  
  7 0 7
- Does pH Go with the Fizz?
  
  What happens to unfinished soda? Many soft drinks are easy to tell apart by their tastes; they all are made from different recipes. But what they have in common is the presence of carbon dioxide. Compare the original acidity of soda with what happens to pH levels as the soda loses its carbonation and goes “flat”.
  
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  
  12 0 12
- Speak to GlobalLab
  
  Where in the past, present or future would you like to visit? Tell us in an 30 second audio recording that you prepare and submit.
  
  Проф. Борис Беренфельд
  K. Mazhurina
  
  23 2 17
- Sweet Apples & Ripe Seeds. Is There a Relationship?
  
  Animals are distributors of seeds. They eat fruits and expel seeds, enabling new plants to grow far from the mother plant. The sweeter and riper the fruit, the more attractive it is to animals. But are seeds ready for germination when their fruits are most ripe? Let’s find out, using apples.
  
  ГлобалЛаб
  Проф. Борис Беренфельд
  Arseny Lebedev, методист
  Геннадий
  
  2 0 10
- Our Sports
  
  Why do we like the sports we do? Does where we live impact our sports preferences? Is it our environments? Our cultures? Our friends? Our parents?
  
  Проф. Борис Беренфельд
  K. Mazhurina
  ГлобалЛаб
  
  97 14 540
- Plants as Bioindicators: the Soil pH Test
  
  Some plants can tell us much about an ecosystem. These are bioindicators. Let’s see how reliable and universal they are.
  
  Проф. Борис Беренфельд
  K. Mazhurina
  Harvey Y.
  ГлобалЛаб
  
  1 0 0
Submitted research ideas
- Facilitating 6 projects
- Температура воздуха
  
  Всегда ли температура воздуха в населённом пункте соответствует метеосводкам? Давайте создадим собственную карту температур воздуха в разных регионах страны.
  
  Сергей Николаевич Ловягин
  ГлобалЛаб
  
  61 54 395
- Влажность почвы
  
  Сколько воды содержит почва в разные месяцы в разных широтах? В ходе проекта будут исследованы факторы, которые влияют на влажность почвы – положение участка в рельефе, гранулометрический состав, близость к морю, географическая широта и др.
  
  Сергей Николаевич Ловягин
  ГлобалЛаб
  
  16 6 74
- Температура почвы
  
  При сильном ветре температура воздуха может измениться за считанные часы. Так ли быстро изменяется температура почвы? Данный проект поможет разобраться в данном вопросе.
  
  Сергей Николаевич Ловягин
  ГлобалЛаб
  
  24 23 125
- Облачный покров
  
  Часто ли вы смотрите на облака? Можете ли ответить, чем вчерашние облака отличались от сегодняшних? Как там, где вы живёте, различается облачный покров в разные месяцы?
  
  Сергей Николаевич Ловягин
  ГлобалЛаб
  Яна Олеговна Злочевская, ведущий тьютор ГлобалЛаб
  
  80 40 562
- Птицы на виду
  
  Давайте посмотрим, какие птицы встречаются на наших пришкольных участках или рядом с нашими домами.
  
  Яна Олеговна Злочевская, ведущий тьютор ГлобалЛаб
  
  55 31 415
- Солнце над горизонтом
  
  Воздух, почва, птицы и растения зависят от поступления в экосистему солнечной энергии, а её количество зависит от широты. Давайте выясним, где мы видим солнце в одно и то же время в разных местах земного шара.
  
  Сергей Николаевич Ловягин
  ГлобалЛаб
  Яна Олеговна Злочевская, ведущий тьютор ГлобалЛаб
  
  36 41 116
Participated in 2 units
- Visit a fairy tale
- Проектные задания. Математика. 3 класс
- Participating in 19 projects