1、P1 Introduction,Module 5 A Lesson in a Lab,Objectives,To learn some new words related to experiments and science 2. To be able to understand some facts about general science,What is science?,Science is the knowledge about the structure and behaviour of the natural and physical world, based on facts
2、that you can prove, for example by experiments.,The definition of,This picture shows you more about science.,社会学,逻辑学,数学,物理,化学,细胞生物学,功能性生物学,心理学,地球科学,天文学,接龙,幻灯片上单词或短语出现时，同学应迅速读出并说出中文意思。,每人一词，按行/列依次接龙，3秒内说不出，此行/列同学即失去此答题机会，下一行/列同学接续。,mixture,substance,liquid,oxygen,solid,surface,exist,contract,metal,ex
3、pand,(a) Water exists as a solid, a liquid and agas.(b) Water exists as a solid and a liquidonly. 2. (a) When you heat a metal, it expands.(b) When you heat a metal, it contracts. 3. (a) Steel is a mixture of iron and other substances.(b) Steel is a mixture of iron and oxygen. 4. (a) Two-thirds of t
4、he earths surface is water.(b) 50% of the earths surface is water.,How much do you know about general science? Choose the correct answers to the quiz.,P41 1,5. (a) The distance of the sun from the earthis 25,5000 kilometres.(b) The distance of the sun from the earthis 150,500,500 kilometers. 6. (a)
5、The earth is 4.6 million years old.(b) The earth is 4.6 billion years old. 7. (a) The earth is twice as large as the moon.(b) The earth is forty-nine times larger than the moon.,Now listen and check your answers.,Put these words in pairs or groups.,air contract earth gas liquid oxygen moon solid sun
6、 expand,1) air gas oxygen 2) contract expand 3) earth sun moon 4) gas liquid solid,P41 2,solid/ liquid/ gas,Are you familiar with this picture?,Which of the above are natural? 2. Which are man-made? 3. Which can be both?,electricity iron metal steel air glass,Electricity, iron, some metals and air a
7、re natural.,Steel, some metals and glass are man-made.,Electricity and some metals (alloys for example) can be man-made and occur naturally.,Things can be divided into three kinds, natural, man-made and either natural or man-made. Look at the words in the box and answer the following questions.,P41
8、3,In many scientific experiments, we often use metals. Look at the following pictures. Do you know what they are?,potassium 钾,iron 铁,sodium 钠,aluminium 铝,calcium 钙,copper 铜,magnesium 镁,zinc 锌,Potassium Sodium Calcium Magnesium Aluminum Zinc Iron Copper,Na Ca K Cu Zn Fe Mg Al,Match,Do you know any interesting scientific phenomena? Discuss with your group members and choose one of them to make a presentation to the class.,Talk,Who knows the most interestingscientific phenomenon?,Preview the new words and expressions on Page 44&45.,
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