What is an amino acid? Why do they cause superglue to stick to my fingerprints on a cd when I place the cd in a plastic box covered with plastic wrap? I'm 9, so I really need just a simple answer. Thanks.
An amino acid is a small molecule that is a building block for proteins, which are essential for the structure and function of our bodies. They are found in many foods like meat, beans, and nuts.
Superglue is a type of adhesive that forms a strong bond when it comes in contact with certain surfaces. One of the reasons why superglue sticks to your fingerprints on a CD is because of the oils and sweat on your skin.
When you touch the CD, some of these oils and sweat transfer onto the surface. These substances contain amino acids, which can chemically react with the superglue. This reaction helps to create a bond between the superglue and the CD surface, making it stick.
It's important to note that CDs are made of polycarbonate, which is a type of plastic. Plastic wrap and plastic boxes also contain chemicals that can interact with the superglue.
So, in summary, the amino acids present in your fingerprints help to create a chemical reaction with the superglue, causing it to stick to the CD surface when it comes in contact with oils and sweat on your skin.