1 Age in years is for student at the start of the academic year-about early September for most schools in the UAE, early April for Indian and Pakistani schools. 2  Check the exact date with the school if your child has a birthday around this time.
The repeating structural unit of most simple polymers not only reflects the monomer(s) from which the polymers are constructed, but also provides a concise means for drawing structures to represent these macromolecules. For polyethylene, arguably the simplest polymer, this is demonstrated by the following equation.
Sometimes polymers are called macromolecules. Macro means large and by now you've figured out that polymers must be very large molecules! Get in Line! Most of the polymers we'll talk about here are linear polymers. A linear polymer is made up of one molecule after another, hooked together in a long chain. This chain is called the backbone.