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1、 Module 5 A lesson in a Lab 外研社 高中英语 第一册 new words To learn about some vocabulary and knowledge related to science and experiments To know how to do a simple experiment and write the report about it in English 3. To raise interests in science and form the right scientific attitude. Teaching Aims lab
2、 test tube balance Bunsen burner crucible 本生灯（煤气喷灯） 坩埚坩埚 When the iron is heated(加热） it will When the iron is cooled(遇冷） it will expand contract How much do you know about general science? How many states does matter exist as? Use your mind! solid liquid gas oxygen metal Read the words together Step
3、 I Pre-reading Put these words in the correct order to describe the stages of a scientific experiment. conclusion aim result method When we do an experiment , we should first of all have an _.We should use proper _.We should find out the _and get a_. aim methods result conclusion Scanning: Listen to
4、 passage A quickly and choose the best title for it. The Different Uses of Metals The Reaction of Metals The Reaction of Metals with Oxygen Passage A Careful Reading ; Read passage A carefully and answer: 1. Which of the metals in the table reacts the most with oxygen and water? 2. What happens when
5、 you heat calcium in oxygen? 3. Which metals react with steam? 4. Does iron have a slow or fast reaction with steam? 5. Does copper react with water? Potassium, calcium and sodium. It burns to form an oxide. Magnesium, aluminium and zinc. It has a slow reaction. No, it doesnt. Passage B : Some impor
6、tant words about the experiment: apparatus (仪器,设备) holder (台、架等)支持物, 固定器 cotton wool 棉絮 bunsen burner本生灯（煤气 喷灯） Iron in dry airPut/ push/ leave Iron in air-free water Half- fill/boil/ make sure/ put/ add/keep-out of Iron in ordinary waterHalf-fill and add/ leave Stage A (Starting experiment) Stage B
7、 (1 week later) Stage C (Result ) _ _ _ - nails- nails- nails - nails- nails - nails _ _ _ _ _ _ _ _ _ _ _ _ _ cotton wool cotton wool Iron doesnt rust Oil layer water Oil layer water Iron doesnt rust water water Iron rusts Consolidation 1 Answer these questions in groups of four. 1) In the first pa
8、rt of the experiment,what is the use of the cotton wool in the test tube? 2.) In the second part ,what is there on the surface of the water in the test tube? 3) What is the use of the oil? 4) Why are the nails in the test tube with ordinary water rusty? There is oil on the surface of the water in th
9、is test tube. The oil can keep air out of water. The cotton wool can keep air dry. Iron reacts with oxygen in ordinary water and forms rust. Lets do a simple experiment to test if magnesium can burn in the air and write a short report: Aim: Methods: Result: Conclusion: To find out if Magnesium burns in the air 1)use a pair of tongs to pick up some magnesium 2)light it Magnesium is burning with a bright flame in the air Magnesium can burn in the air Magnesium can burn in the air Homework: Go into your science lab and tell your class the apparatus.
