Mirror Can Double Objects

Do you know that mirror can double objects unlimitedly? How can it be? To know further, why don't do the following experiment.

Tool and materials that you needs:

cellophane

tape

marbles flat mirrors

The steps:

1. Put the cellophane tape, the marble, and two flat mirrors on the table.
2. Put the two mirrors together using the cellophane tape, so that they form a 90 derajat. Method is like this, you can use the corner of a thick book, put the mirrors in the book corner, then put both mirrors together using the cellophane tape. Now take a look at the combination mirror. How many mirrors that you see? Look in the mirror. Without touching it. Can the mirrors also produce objects' reflection in each of the visible mirror?

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Light Moves Straight

Do you know, how the light moves from one place to another, is it straight or curve? To answer that question, you need to do the following experiment.

Tools and Materials that you need:

• a piece of carton
• a flash light
• a string

The steps are:

1. Prepare the flashlight, string, and thick carton on the table
2. Make three equal supports that shape rectangular made of thick carton, and then in the middle of the carton is made a small hole.
3. Put one of the cartons on the table, then turn on the flashlight, take a look by yourself on the screen. Is there light coming out the carton? In what shape is the light?

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