Amazing Maize Colorado Reader is all about corn. It discusses the types of corn grown in Colorado. It describes the parts of a kernel and the corn plant. It illustrates how corn farmers have become more efficient at raising corn in ways that protect land and water resources. It discusses biofuels and how corn is used to make ethanol. Corn is found in over 3,000 items in the grocery store. It is also an important product used in the manufacture of may items.