Polymers are an important part of our everyday lives, from the plastic we use to the fibers in our clothing. Teaching students about polymers can help them understand the properties of materials and how they are used in different applications.
To begin a lesson on polymers, it is important to start with the basics. A polymer is a large molecule made up of repeating units called monomers. These monomers can be the same or different, and they are linked together by a chemical bond to form a long chain. Polymers can be natural, like proteins and DNA, or synthetic, like plastics and rubber.
One way to introduce polymers to students is through hands-on experiments. For example, you can mix together glue and borax to create a polymer slime. The glue contains the monomer polyvinyl alcohol, which links together with the borax to form a long chain. This creates a slimy material that can be stretched and pulled, giving students a chance to see the properties of a polymer firsthand.
Another way to teach about polymers is through real-life examples. Students can investigate the properties of plastic bags or water bottles and compare them to other materials like paper or metal. They can also explore the properties of different types of fibers, like wool or nylon, and examine how they are used in clothing and other textile applications.
In addition to experiments and examples, it is important to discuss the impact of polymers on the environment. Students can learn about the problems caused by plastic pollution and explore ways to reduce their own plastic use. They can also explore alternative materials, like biodegradable plastics or natural fibers, as a way to address these problems.
