1st step

■ Do you have any chemicals/chemical products in your home?
■ What chemicals/chemical products do you have in your home?

2nd step


In Parts 1 and 2 students find out more about the many
chemical products which people use in their homes. They also
examine the labelling of these products and learn about the
international symbols for labelling chemical substances.
They have an opportunity to make and test a chemical


Research by interview, or from secondary sources, to investigate a local story related to chemistry and to discover an example of the importance of chemistry to the local, regional or national economy.

giovedì 23 aprile 2009

Pharmacy-By Verdiana C

Pharmacy - for treating disease By Verdiana C.

Antibiotic Ingredients : Bactrim sulfamethoxazole and trimethoprim

Syrup Ingredients: Nureflex ibuprofen

Chemical Formula: C6H4(OCOCH3)CO2H

Aspirin Ingredients: Acetylsalicylic acid

Cortisone Acetate Ingredients: calcium stearate, corn starch, lactose, mineral oil, sorbic acid, sucrose.

The most common ingredient in shampoos is known as straight-chain alkyl benzene sulfonates. An example is Ammonium Lauryl Sulfate, or its sodium relative, or the slightly larger related molecule ammonium lauryl ether sulfate, sometimes abbreviated as ammonium laureth sulfate.

Natural mineral, Salts, Ammonium alum

Today, soaps are made from fats and oils that react with lye (sodium hydroxide). Solid fats like coconut oil, palm oil, tallow (rendered beef fat), or lard (rendered pork fat), are used to form bars of soap that stay hard and resist dissolving in the water left in the soap dish.


Phospate of fluorine, NaF

Detergents are cleansing products that may include bar
soaps and liquid gels for cleaning the hands, face or body; detergent powders or cakes for laundry cleaning purposes;
Emmolients, citric acid, fresh fruits , aloe,
humectants etc..


Surface-active, anion , phosphate and perfume

WHASING UP LIQUID:Acids, alcohol etc..



Methane is a chemical compound with the molecular formula CH4. It is the principal component of natural gas. Burning methane in the presence of oxygen produces carbon dioxide and water. The relative abundance of methane and its clean burning process makes it a very attractive fuel. However, because it is a gas at normal temperature and pressure, methane is difficult to transport from its source. Methane in the atmosphere is eventually oxidized, producing carbon dioxide and water. The radiative forcing effect due to this increase in methane abundance is about one-third of that of the CO2 increase. The Earth's crust contains huge amounts of methane. Large amounts of methane are produced anaerobically by methanogenesis. Methane is a significant contributor to global warming and the Kyoto protocol seeks to regulate its production.

Mineral oil
All oils, with their high carbon and hydrogen content, can be traced back to organic sources. Mineral oils, found in porous rocks underground, are no exception, as they were originally the organic material, such as dead plankton, accumulated on the seafloor in geologically ancient times. Through various geochemical processes this material was converted to mineral oil, or petroleum, and its components, such as kerosene, paraffin waxes, gasoline, diesel and such. These are classified as mineral oils as they do not have an organic origin on human timescales, and are instead derived from underground geologic locations, ranging from rocks, to underground traps, to sands.Other oily substances can also be found in the environment, the most well-known being asphalt, occurring naturally underground or, where there are leaks, in tar pits.Petroleum and other mineral oils, (specifically labelled as petrochemicals), have become such a crucial resource to human civilization in modern times they are often referred to by the ubiquitous term of "oil" itself.

Wood is an organic material; in the strict sense it is produced as secondary xylem in the stems of trees (and other woody plants). In a living tree it conducts water and nutrients to the leaves and other growing tissues, and has a support function, enabling woody plants to reach large sizes or to stand up for themselves. However, wood may also refer to other plant materials with comparable properties, and to material engineered from wood, or wood chips or fiber.People have used wood for millennia for many purposes, primarily as a fuel or as a construction material for making houses, tools, weapons, furniture, packaging, artworks, and paper. Wood can be dated by carbon dating and in some species by dendrochronology to make inferences about when a wooden object was created. The year-to-year variation in tree-ring widths and isotopic abundances gives clues to the prevailing climate at that time.

Personal Care by Giulia M

Mascara pigments (i.e. carbon black and iron oxide), oils (i.e. lanolin, eucalyptus oil, mineral oil) , waxes(i.e. carnauba wax, beeswax and paraffin), water. Sometimes vitamins are added such as pro-vitamin B5.

Eye Shadow titanium dioxide, mica, iron oxides, ferric ferrocyanide.

Powder cheek Talc, Kaolin, Mineral Oil, Zinc Stearate, Silica, Methylparaben, Propylparaben, Butylparaben, D&C Red No. 7 Calcium Lake, D&C Red NO. 36, Titanium Dioxide, Ultramarine Blue.

martedì 7 aprile 2009

Chemistry in our homes

Here is our grid after looking for Chemistry in our homes!!!!


Common example of a product in our homes

Source: natural o manufactured and country of origin

Ingredients listed on the label


For adding to food during cooking

For preserving food

Oil, salt, spices(pepper, hot pepper, cinnamon)wine, vinegar, sugar, onion, garlic

Vinegar, oil, garlic and mentha

Natural: oil(Italy), wine(France), pepper, hot pepper(Mexico), onion and garlic

Manufactured: vinegar and salt

Wine: water, alcohol, grape juice

Salt: NaCl


For keeping people clean

Shampoo, deodorant, soap

Tooth-paste, detergent,

Shower gel

All manufactured


Tooth-paste :phosphate

of fluorine, NaF

For washing clothes

For cleaning surfaces such as floors ,walls or windows

Softening, ammonia,


Washing up liquid, detersive floor wax

Natural: ammonia

Manufactured: detersive, softening

All manufactured


Ammonia: NH3

Detersive: surface-active, anion , phosphate and perfume

Personal care

For cosmetic use

For colouring hair

Mascara, eye shadow, phard, lipstick, lip-gloss, foundation, eyeliner, lip liner

Hair dyed

All manufactured



Foundation: Cyclomentique, aqua, gly cerin, titanium and dioxide


For treating disease

Aspirin, pills, tablet, sirocco, antibiotic, suppository, cortisone

All manufactured


Pills(travel gum): Si, dextrin, talc, Mg, glucose, Ti, Ca, aroma of mint


For use as a fuel(cooking, heating, transportation)

Petrol, diesel, oil(transportation)

Coal, gas, alcohol(cooking)

Gas, olive, wood residue(heating)

Natural: petrol(U.S.A, Russia, Iraq and Iran)

Wood: north Europe

Gas(U.S.A and Russia)

Petrol: Petrol Paraffin, Kerosene, benzene, wax, Asphalt and Bitumen

Plant growth and protection

For growing plants

For killing insect pests

Water, manure, soil, sun bait, fertilizer

Pesticide, insecticide

Natural: water, manure, soil, sun bait

Manufactured: fertilizer


giovedì 2 aprile 2009

My name is Alexander. I was born in Washington DC, USA, but now I live in Romania. My hobby is listening to techno music and mixing some music on Virtual Dj but I also like playing games. My favourite subject is Chemistry and I also like Mathematics. In the future, I want to enter Politics, that is my dream! I believe that this project will not only increase our knowledge in Chemistry but it will also help us work together and meet new people.

My name is Vlad and I’m a student in the 9th grade at “Lauder-Reut High school”. I’m born on the 14th of July 1993. I play tennis 2-3 times per week. In my free-time I like: listening to music, taking photos, playing football, swimming and hangin’ out with my friends. I like to see movies, watching TV and surfing the Internet. Also I like to be involved in projects that are regarding freedom (of speech, expression etc), recycling and the natural environment.

My name is Marcel, I am in the Lauder-Reut High-school for more than 10 years. I like playing football, basketball and tennis with my friends when I am free.(also like chemistry)

Eyal: I myself may consider that I'm different than other people. I think I'm a little bit too calm for the society of today that makes you be a little "monster" .I also think I am fit (more thin than fit) and very sporty. I like playing basketball, football, and I also like to practice football using a very small ball. Socially speaking I think I'm not so popular however I consider myself friendly and peaceful. Even if sometimes I get mad at my friends (or the other way around) we get together faster than anyone expects.
Speaking of myself I think I'm just an ”OK” looking teenager, pretty thin with nice, blue eyes (everyone says that) and an overall good look. Mentally I think I go well at school, however not brilliantly well .My strongest passions at school are chemistry, sports and arts.
My biggest hobbies are photography, digital art, Basketball. Art is one strong passion for me that I've discovered a little time ago trying to find out what I'm good at. Basketball is a sport I've practiced since I was a little boy.

My name is Laura and I`m 16 years old. I like to be happy, optimistic and free. My motto is: 'Live the moment'.

My name is Michael Radu or Mike for short. I was born and I grew up in Ramat Gan, Israel. I've recently moved to Romania for a greater opportunity and such. My favourite school subjects are chemistry, mathematics and a bit of physics. Even though I started studying chemistry in the 7th grade, it has been constantly exciting me and found it very inspiring. I like playing many sports, my favourite ones are American Football alongside Soccer. My hobbies are going out with friends, hanging out, going sometimes to the cinema and listening to music.

Hi, I'm Ada and I'm 15. I love to do funny things, like hanging out with my friends, dancing, singing, taking pictures etc. I'm very optimistic and I try my best to be happy all the time. But, I'm not afraid to raise my voice when I know I'm right. Hope you'll enjoy our project.

Hi! My name is Yardena and I’m 15 years old. I like summer, purple, blue, hearing the birds in the morning, singing, music, dancing, drinking hot chocolate when I’m cold, hanging out with my friends in the park, parties, clubs, photographs, sweets, etc. I hate people who hate me, liars, people who pretend to know everything even though they don’t.

Hi! My name is Matt, I live in Bucharest, Romania, I am 16 years old and I attend high school. I like playing computer games, going out with my friends in the park or to the cinema. I love biking, I am in a BMX crew with which I go to contests. My favourite food is pizza.

My name is William. I have brown eyes and brown hair. I love sports. I play at Dinamo Club. My hobby is playing computer games, like Counter Strike and FIFA.

I am Amalia, 15 years old. The things I like: music, clubs, parks, bikes, sun, snow, seaside, running, doing sports, summer nights, chocolate, weaking up at 9 in the morning, watching TV, going out with my friends, baking cookies, dancing, travelling, hot chocolate. Things I hate: lies, bad people, not knowing something.

I am Yvonne. I was born on the 26th of April in 1993. Things I like: doing projects (for school), reading good books, listening to music, dancing, going to parties, jogging, English and Chemistry lessons, laughing, watching extreme sports. Things I hate: liars, mean and cruel people, waking up early in the morning.

Something about me: I am Ioana. I'm in the 9th grade and I really like my mates and my teachers. They are special. I have done ballet for performance. Now I'm doing it like a hobby. Also, I love to make choregraphies, to read and to write. I'm friendly and sociable even if I don't speak very much. I'm fascinated by mystic cultures and languages. This is why, I Iearned (a little bit of) Hebrew and (a little bit of) Japanese.

Here we are

mercoledì 1 aprile 2009


We are students in the 9th grade at Lauder-Reut High School, from Bucharest, Romania. Our high school is a bilingual private institution. We are studying in Romanian and English. The profile of our high school is business, media and diplomacy, but we are interested in lots of things.
Here we are going to introduce ourselves......

Lettori fissi