Unit 16Unit 16 Franklin`s FaFranklin`s Famous Kite Experimentmous Kite Experiment

Unit 16Unit 16 Franklin`s FaFranklin`s Famous Kite Experimentmous Kite Experiment

Lecturer ： Fan LiyanLecturer ： Fan Liyan

A Brief Introduction

• Benjamin Franklin (1706-1790)

• American statesman ， inventor ， writer, and scientist.

Well done is better than well said .

The main idea of each part .Match them with each other.

• Part 1(Para.1)

• Part 2(Para.2-3)

• Part 3(Para.4-6)

• The steps of the experiment

• The tips of doing the experiment

• Introduction of Franklin`s experiment

Read the statements and decide if they are TRUE(T) Or FALSE(F).

• 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. ( ) ANSWER:T F F T

By his son

It would last longer in bad weather

1.List all the materials that are needed to make a kite.2.List what are needed to do the experiment.

KITE KITE EXPERIMENT

Two pieces of light wood

A handkerchief

A ribbonA piece of metal

A key

Bad weatherA condenser

A string

Discuss the questions with your partners.

• Discuss the questions with your partners.1. Why did Franklin do the experiment with the

kite?

2. Why is it better to make the kite of silk than that of paper?

3. Do you think the experiment was dangerous? Why?

He wanted to prove lightning and electricity are the same thing.

Yes .If something went wrong ,he might be killed.

Choose the right pictures .

T

T

Consolidation

Poland,radioactive elements,

Nobel Prize

England,an apple tree,

the Universal

Law of Gravitation

England,naturalist,

the Origin of Species,natural

selection,the fittest races

Homework for today

PHYSICS MEDICINE

CHEMISTRY

BIOLOGY

NAME

DISCOVERY