6 Form Pace work 20.05.20

6 Form Pace work 20.05.20

Тема: Вуглецевий цикл

 In this lesson, we  will revise what we have already learnt about air and talk about circulation of oxygen and carbon dioxide.

 What do you know about the components of air? Why is air so important for people?

 Make up sentences using any two of the words written on the board in each. Remember there should be at least 12 words in each sentence.

Blanket                      Hospital                          Sick                              True                          Soccer Bottle                           Cough                         Germ                       Handkerchief                  Sneeze                          Supper                          Heat                             Stay                               Air                              After Rain                             Large                            Run                             Liquid                             Wet

For example: It was raining so he took his favorite blanket and went to watch soccer on TV.

 Read the text  “The Carbon Cycle”

The Carbon Cycle All living things are made of carbon. Carbon is also a part of the ocean, air, and even rocks. Because the Earth is a dynamic place, carbon does not stay still. It is on the move! In the atmosphere, carbon is attached to some oxygen in a gas called carbon dioxide. Plants use carbon dioxide and sunlight to make their own food and grow. The carbon becomes part of the plant. Plants that die and are buried may turn into fossil fuels made of carbon like coal and oil over millions of years. When humans burn fossil fuels, most of the carbon quickly enters the atmosphere as carbon dioxide. Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world. But humans have burned so much fuel that there is about 30% more carbon dioxide in the air today than there was about 150 years ago, and Earth is becoming a warmer place. In fact, ice cores show us that there is now more carbon dioxide in the atmosphere than there has been in the last 420,000 years.

 

Describe the carbon cycle.