Paragraphs and Topic Sentences by Indiana University
Paragraphs by UNC Chapel Hill
A paragraph is a block of sentences that all focus on the same topic. After the introduction, your paper will be made up of multiple body paragraphs.
If you can, think of a body paragraph as being like a hamburger.
Topic sentences are mini summaries of the paragraph to follow and, at the same time, relate to your thesis to help focus your paper.
Here are some examples of strong topic sentences: Topic Sentences (sjsu.edu)
To move smoothly from one topic to the next, a topic sentence often includes a transition from the previous topic. Our page on transitions goes into more depth about how to create effective transitions.
Most of the paragraph will be made up of content that supports your topic sentence. This might include
The "meat" of the paragraph needs to be unified and focused. In other words, each sentence should relate to the sentence before and after it, and everything should relate to the main idea introduced by the topic sentence.
Fast-fashion not only exploits workers, but is also environmentally damaging. [topic sentence with transition] It takes about 400 gallons of water to produce cotton for a T-shirt, and 2,700 gallons of water for jeans. These numbers do not include the water needed for making and dying fabric. In a CNN article, Helen Regan reports how during the fabric production process in India, China, or Bangladesh, many of the chemicals used are released into rivers without much filtering. As a result, nearby rivers routinely turn red, blue, or green depending on what the color of production of the day is. [evidence and explanation] While colors might be visible, the dangerous chemicals remain invisible, yet dangerous for local residents. [final sentence emphasizing the significance of the paragraph's topic]
From "How Clothes Harm the Environment," Tala Tabishat, Contexts, Vol.21 (1), p.54-56