课件33张PPT。Great scientistsUnit 1 What do you know about great scientists? Try this quiz and find out who knows the most?Are you ready?
Let’s go!1. Which scientist discovered that objects in water are lifted up by a force that helps them float?ArchimedesIt’s…2. Who wrote a book explaining how animals and plants developed as the environment changed?Charles Darwin3. Who invented the first steam engine?steam engineIt’s used for taking water out of mines.James Watt4. Who used peas to show how physical characteristics are passed from?Gregor MendelIt’s used in the treatment of some diseases, especially cancer.radiumWhat’s this?5. Who discovered radium?Marie Curie6. Who invented the way of giving electricity to everybody in large cities?Thomas Edison7. Who was the painter that studied dead bodies to improve his painting of people?Leonardo da vinci8. Who invented a lamp to keep miners safe underground?Sir Humphry Davy9. Who invented the earliest instrument to tell people where earthquakes happened?Zhang HengDo you know what black hole means?9. Who put forward a theory about black holes?相关网站：http://www.pbs.org/wnet/hawking/html/home.html
What do you know about infectious diseases? a kind of infectious diseasesWhat do you know about cholera? a serious infection of the bowels caused by drinking infected water or eating infected food, causing diarrhoea, vomiting and often death.霍乱Do you know how to prove a new idea in scientific research?
Discuss in small groups the stages in examining a new scientific idea. relating to science, or using the organized methods of science. scientifica scientific discoverya scientific experimenta scientific theoryDraw a conclusion
Think of a method
Collect results
Make up a question
Find a problem
Analyse the results
Repeat if necessaryWhat order do you put them in? Why?Think of a methodCollect resultsMake up a questionFind a problemAnalyse the resultRepeat if necessaryDraw a conclusionIs it the right way?DiscussCan you talk about any great scientists? Thank you
