Pre-Reading: 1.Do you know the names of some famous scientists? 2. What are they famous for?
Post on 17-Jan-2016
Pre-Reading:Do you know the names of some famous scientists?2. What are they famous for?
Isaac NewtonLord Kelvin(lowest temperature)Physics: (radioactivity)(gravity )
Medicine:Florence Nightingale(Pie charts)John Snow(spread of disease)Louis Pasteur(germs)
Chemistry:Watson & Crick(DNA)Gay-Lussac(Gas laws)Mendeleev(Periodic Table of elements)
Biology:Beatrix POtter(seed of mushrooms)Charles Darwin (Evolution)Carl Linnaeus(Naming Plants)
Franklins Famous Kite ExperimentBenjamin Franklin
1. Read the statements on the paper and decide if they are true or false before and after you read.In 1752 scientists already knew what electricity was. Franklin was helped by a friend to do the experiment. Franklin made the kite of silk because wet silk does not conduct electricity. 4. A condenser was used in the experiment to store electricity.5. The key tied to the string was put into the door to stop the kite from flying away.
Answer the following questions.Why did Benjamin Franklin do this experiment with the kite?Why is it better to make the kite of silk than of paper?How to make the kite for the experiment? What things do we need??
kiteKite experimentA kite condenserA keywoodsilkmetalstringtailropeBad weather
The process of the Experiment
Discussion: 1.Do you think Franklins experiment was dangerous? Why?2. What do you learn from Franklin?
Homework:Finish the report.Review the lesson.Tell the experiment with your own words.Goodbye!