What paper changes color with pressure?

 

What paper changes color with pressure?

Step-By-Step Guide:

1. Obtain a pack of carbonless copy paper. This type of paper, often used for making duplicates of handwritten documents, is also known as NCR paper (no carbon required).2. Place a sheet of the carbonless copy paper on a hard surface, such as a table or desk.3. Take a pen or pencil and apply pressure while writing or drawing on the top sheet of the carbonless copy paper.4. As you apply pressure, you will notice that the paper changes color where the pressure is applied. This is due to the reaction of the microcapsules containing color-forming chemicals on the paper.5. The color change occurs because the pressure causes the microcapsules to break, releasing the chemicals and causing a chemical reaction that produces color.6. Experiment with different levels of pressure to see how it affects the intensity of the color change. 7. Keep in mind that the color change is temporary and will eventually fade over time. 8. Carbonless copy paper is often used for creating receipts, invoices, and other documents that require duplicate copies without the need for carbon paper.9. Remember to store the carbonless copy paper in a cool, dry place to ensure that the color-changing properties remain effective.By following these steps, you can observe how carbonless copy paper changes color with pressure, making it a fascinating and practical tool for various applications.

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