To improve scientific language and vocabulary for writing physics and chemistry essays, several textbooks are recommended. For high school level, Giancoli's Physics (algebra version) and Zumdahl's Chemistry are suggested. For those who have completed calculus, Halliday, Resnick, and Walker's "Fundamentals of Physics" is a solid choice. While these books may not directly enhance vocabulary, they provide a strong foundation in scientific concepts. Additionally, reading about the history of physics and notable scientists can offer insights into the evolution of these fields, although the focus here is on specific branches of science like mechanics, thermal properties, electricity, and aerodynamics. It's emphasized that mastering basic concepts is essential before delving into specialized topics, and further book recommendations can be found within the forum.