Looking at the end of a chapter for rules, conclusions, or summaries also aids reading at the skimming level. Although science textbooks vary in their layout, they are generally organized quite systematically. For example, when a concept is introduced for the first time, it is written in italics, in capital letters, or in bold-type letters. Examples are often written in a different color. Theories and definitions, on the other hand, are usually written in boxes.
Some textbooks have the main points written in the right-hand margin.
To sum up, skimming a science text can be made easier if students are made aware of the general organization, the layout, and the details that science textbooks adopt in order to facilitate reading. Studying the organization of the textbook as a whole by looking at the table of contents. Studying the use of color in a textbook. Looking for boxed information. Studying the use of capitals and slanting and bold-type letters.