In a natural sciences academic program, many branches of the field might be explored in depth with the goal of observing and learning about nature. Some of these branches may include astronomy, biology, physics, ecology and chemistry.

Mexico, officially the United Mexican States, is a federal constitutional republic in North America. Working may require a work visa, which is difficult to get if you want to freelance for a short time. Most of the government-funded universities in major cities (state capital) have short courses on history, gastronomy, and cultural subjects, and most of them are almost free.

A certificate is a short scholastic program that helps provide students with the education and training they need to qualify for promotions at work or to supplement their existing academic records. These programs are usually completed in less than a year.