Friday, 22 November 2013

Air Pollution and Global Warming

At the beginning of class we talked about last class

We talked about the experiment that we did, and we also talked about other safety things that we could do to avoid being hurt when things such as the glass exploding happens.

Next we where discussing about what we are going to do in class and that we are going to start discussing how do we affect the Atmosphere. Also, Mr. Pro explained to us that we where going to have to do an essay and he explained to us how we should do it, and how we are going to be graded on that.
Grading Details

We later answered questions based on the brainpop video on air pollution

  1. How does burning fossil fuels in factories, power plants, cars, and in our homes affect the atmosphere?
It releases harmful chemicals, soot and dust into the atmosphere that can make us sick.  
  1. What damage can air pollution do you to your lungs?
It will stick to your lungs.  It can also contribute to formation of cancer and asthma.
  1. Define smog.
It’s a mixture of smoke and fog that forms over cities.
  1. Describe why ozone is not good on the surface, but good in the stratosphere.
It reacts with other molecules forming very harmful chemicals.  But in the stratosphere, it protects us from UV radiation.  
  1. Describe a problem caused by acid rain.
It can kill animals, especially ones with permeable skin (like frogs).  
  1. What causes pollution?
Burning fossil fuels, forest

We also answered some more questions on what atmospheric problems have we created

What’s the problem?
  • The climate Earth is becoming on average warmer.
  • ice caps which are melting which will cause sea levels to rise and flooding of coastal cities
  • more frequent strong storms are happening
What is causing the problem?
  • increase in CO2 emissions from burning fossil fuels is causing the enhanced greenhouse effect
What are people doing to solve the problem?
  • alternative energy sources are being used in a few place instead of fossil fuels
  • planting trees
  • using less resources: electricity, gasoline and other fossil fuels
How is nature acting to solve the problem?
  • There are natural mechanisms such as forests and algae taking up CO2 that reduce CO2 concentrations.

We watched two videos on global warming

We discussed that if this global warming continues more than half of the big cities will eventually be underwater.

We had to answer the Task Form on city smog and answer the following questions

    Explain the problem.

    Explain the causes of the problem.

    Explain what people are doing to solve the problem.

    Explain what nature is doing to solve the problem.

    Discuss a future solution that may be used in the future to solve the problem.

1 comment:

  1. Helena,

    I think your post is very good. The only thing I think you should have included are the skills we used in class. I'm not sure what they were anymore, but Mr.Pro probably put them on the blog for the class you were the scribe in.



Please write positive comments or constructive feedback in full sentences.