holt science and technology physical science textbook. “Holt Science and Technology”. This textbook is about engineering. It is about science, engineering and technology. That’s it. It does not explain or teach about anything else in terms of physics, chemistry, or any other area that you’re likely to need in your everyday life. The content is based on real world cases and real world happenings from all over the world, with a big emphasis on the late 1800s through present day where electricity (and electronics) was invented. There are many examples throughout the book to illustrate how physics and engineering work together in order to achieve goals.