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Hello,everyone,today i wll teach you how to keep the secret information
PART 1
Do you want to write a secret letter to your friends? Today, I will teach you how to do it! It’s not very difficult, please pay attention! There are some questions in my report, if you answer them correctly, I will give you presents!
If you want to keep the message between you and your friends a secret, you should make other one cannot see or read them. I’ll teach you how to make a kind of secret message, it is called water letter.
Step1: you need to prepare a pencil, a piece of glass and two pieces of paper.
Step2: dip(浸) one of the piece of paper in the water, and then take it up and put it on the glass. (Maybe you can put it on the window.) Put another piece of paper on the wet paper, and then write the message on the dry paper with your pencil.
Step3: off the dry paper, and destroy(摧毁) it.
Step4: put the wet paper to dry, and then you cannot see anything on the paper.
Step5: if you put the paper into the water, you will see the message again! Is it interesting? Now I’ll show the “magic” to you! (Who can come and help me? I wrote a secret message two days ago, I’ll call one of you. And you may put it into the water and read the message to us! )
Sb.: Oh, you can get a present! But please answer my question first: how many steps do we need to make a water letter? (5)
Before the questions, please read the steps twice and remember them and their order.
(Questions)
PART 2
We have learned how to make water letter, but……how to pass the secret letter without catching other people's eyes and keep it?
1. You can stick it under the plate, and you can pass your partner the plate.
2. You can put it in your partner’s napkin and he (she) can take it away.
3. You can stick it under your desk drawer(抽屉), no one will find it.
4. You can make a thick book which has a hard cover hollow(空心的), and put it in the book..
(Questions)

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