FÍSICA i QUÍMICA

periodic table game

table periodic game 2

Chemistry games

• Racons de verd – Aigüestortes i Estany de Sant Maurici

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L’àtom de Rutherford
Model de Rutherford

Estructura de l’àtom
Estructura del átomo

Sostenibilitat

Vivaldi-Four_Seasons_Spring

CLIMATE CHANGE

Climate change is now something that we cannot close our eyes to, and governments all over the World have finally realized that they have to sit up and take notice. These some of the things that many scientists predict will happen if we carryon pollution the atmosphere with CO₂ emissions.

Short term: by the year 2050

• More than a third of the world’s plant and animal species will have become extinct.
• The ice in the Artic Sea will melt everey summer, causing the extinction of polar bears, and many glaciers, for example on Mount Kilimanjaro, will have melted completely.
• 50% of the worlds ski resorts will have closed down due to lack of snow.

Mid term: by the year 2100

• Sea levels will have risen by between 16 cm and 69 cm. This means that low-lying the Maldives will no longer be habitable.
• The number of serious coastal storms and tsunamis will have having 50 days a year of heatwaves when temperatures are over 30ºC (there are currently 6-9 days).

Long term: by the year 3000

• Temperatures will have risen by about 15 ºC.
• Sea levels will have risen by more than 11 metres, flooding large areas of Bangladesh, and many low- lying cities, such as London. Hundreds of millions of people will be displaced.
• One third of the world will be suffering from droughts, and half the world will be having moderate droughts. Tens of millions of Africans will have to emigrate.

Read “What can you do to help?” about what you can do help prevent climate change. Talk to a partner or in small groups. Which of the tips below…?

a)     do you already do

b)     are you prepared to try to do

c)      are you not prepared to try

What can YOU do to help? The top tips

• Fly less. Use buses or trains instead where possible. If you have to fly , give money to an organization like Carbon Footprints to compensate for the CO₂ emissions of your flight.

• Drive as little as possible. Use bikes, or public transport. And if you need to drive, buy a hybrid, a car which has an extra electric motor which charges up when you brake. You could also car share with a friend.

• Use only energy-saving light bulbs.

• Plant trees. Two or three dozen trees can absorb a whole household’s emissions of CO₂.

• Don’t keep your TV or other alectrical appliances on stanby. Switch them off completely.

• Use the cold water wash on your washing machine, and use a dishwasher, on the economy programme, which uses less energy and water than hand-washing dishes.

• Try to buy organic food, if possible which has been grown locally. Take your own shopping bags when you go to supermarkets.

• Turn your heating down and wear a sweater if you’re cold. If you use air conditioning, don’t have it at less than 25ºC.

• Have showers not baths.

• Support an environmental organization, for example Friends of the Earth or greenpeace.

• Regularly reycle paper, glass, plastic, and household waste.

• Vote for the political party which is doing the most to combat climate change.

https://www.chem1.com/acad/webtext/solut/solut-4.html