1. Franklin’s kite experiment

2. 1706-1790 an American scientist one of the leaders of American Revolution be known for his many experiments

3. incorrect incorrect correct correct

4. 1.In 1752 scientists already knew what electricity is. 2.Franklin was helped by a friend to do the experiment. 3. 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. T F F T F

5. an experiment Aim? Preparation? Course? Result?

6. Franklin did the expriment in order to …… show that lighting and electricity are the same

7. Materials Usage Usage A silk hankerchief Pieces of light wood Strings A kite A key A condenser Thunderstrom To make a kite To carry the things into the sky To feel the electric shock To collect and store electricity To produce lighting

8. Processes Step 1 Step 2 Step 3 Step 4 Fix a piece of sharp metal to the kite Fasten a key to the end of the string Tie a ribbon to the string Fly the kite when a thunderstorm appears

9. Result: The experiment was __________.

10. outline the description of the experiment the needed materials the steps of the experiment Para 1---3 Para 4 Para 5---6

11. Is it dangerous for Franklin to do the experiment ? Why?

12. If you have the chance, what experiment do you want to do? (Why? Materials? Processes?)