INTRODUCE THE TOPIC
■ Do you have any chemicals/chemical products in your home?
■ What chemicals/chemical products do you have in your home?
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
STEP 3 LIVING WITH CHEMISTRY
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
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;
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.
martedì 7 aprile 2009
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
For keeping people clean
Shampoo, deodorant, soap
of fluorine, NaF
For washing clothes
For cleaning surfaces such as floors ,walls or windows
Washing up liquid, detersive floor wax
Manufactured: detersive, softening
Detersive: surface-active, anion , phosphate and perfume
For cosmetic use
For colouring hair
Mascara, eye shadow, phard, lipstick, lip-gloss, foundation, eyeliner, lip liner
Foundation: Cyclomentique, aqua, gly cerin, titanium and dioxide
For treating disease
Aspirin, pills, tablet, sirocco, antibiotic, suppository, cortisone
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
Natural: water, manure, soil, sun bait
giovedì 2 aprile 2009
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.
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......
- ▼ aprile (9)