最新英语Unit4LookintoScienceLesson25课件2课件

Lesson 25 Lets Do an Experiment An experiment shows what happens.A theory is an idea.Please fill the jar with water.Lets do an experiment and prove whos right.Please observe carefully what I do.Thats called the scientific method.experiment 实验；试验实验；试验 theory 理论；学说理论；学说 jar 广口瓶；罐子广口瓶；罐子 fill 装满装满 upside 上部；上边上部；上边 prove 证实；证明证实；证明 observe 观察；监视观察；监视 scientific 科学的科学的 method 方法；办法方法；办法1.Lets do the e and see what happens.2.A“t ”is an idea and predicts what will happen.3.We can p whos right.4.Turn the jar u down and we can see what will happen.5.“O ”is another way of saying “watch carefully”.xperimentheoryrovepsidebserve1.Whats Dannys theory?2.Whats Brians theory?Danny thinks the floor will get wet.Brian thinks the floor wont get wet.Fill in the blanks with the right words:Danny:What are you doing,Jenny?Jenny:I am doing an experiment.Danny:An experiment?What is it about?Jenny:A theory about air force(大气压力）大气压力）.I a jar water.I the jar a piece of cardboard.Then I the jar .Can you guess what .Danny:Im sure that the floor will .Jenny:No,I dont think so.Danny:Why?The cardboard cant keep the water in the jar.Because the air hold the water.Thats called the .fillwithcoverwithturnupsidedownwill happenget wetscientific method 1 3 4 5 6 7 8 9 10111213Homework:Do the experiment with your friends inyour home.