Physics and Chemistry : Chemistry and the environment

 Hello everyone, 

In Physics and Chemistry, we have been studying the relationship between humans and the natural world, particularly our impact on the environment, discussing the effects of acid rain, the greenhouse effect and the destruction of the ozone layer. Check out the presentation, video and worksheet questions below! 







  1. Complete the table by matching the name with the formula 


Nitric acid  carbon dioxide carbonic acid  sulfur dioxide   sulphuric acid Nitrogen oxide 


Chemical name 

Formula 


CO2


NO


SO2


HNO3


H2SO4


H2CO3



  1. Label the acid rain diagram 





  1. The greenhouse effect - true or false 

  1. The greenhouse effect keeps the earth cool 

  2. The higher the levels of CO2 in the atmosphere, the more radiation is reflected towards the Earth’s surface 

  3. The greenhouse effect doesn’t cause major damage 

  4. The melting of the ice caps and rising sea levels are caused by the greenhouse effect 

  1. Fill in the gaps 


O3 Radiation   Hole Antarctica Ozone 


The stratosphere is between 15km and 40km above the Earth’s surface. This layer contains _____________, a gas made up of three oxygen atoms (______________). Ozone absorbs ultraviolet ______________, which is harmful to living beings. In the 1980s, researchers started to notice that the thickness of the ozone layer above _______________ had decreased. 

This is known as the _______________in the ozone layer. 




  1. What is the greenhouse effect? Watch the video and answer the questions

  1. What do we use greenhouses for? 

  1. What would happen on earth without the natural greenhouse effect? 

  1. What temperature would the Earth be without the greenhouse effect? 

  1. What do small particles in the air do? 

  1. What pollution have humans produced?



Do you have any ideas about how we can help reduce our impact on the planet?

Alice

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