Which of the Following Is an Example of Scientific Theory?


Jane Flores

When it comes to scientific knowledge, one of the most commonly used terms is “scientific theory.” But what exactly does it mean?

What distinguishes a scientific theory from a hypothesis or a guess? And how can we identify if something is an example of a scientific theory?

In simple terms, a scientific theory is an explanation that has been repeatedly tested and supported by evidence. It is an attempt to explain some aspect of the natural world based on empirical observations and experiments. A scientific theory is not just a guess or an opinion, but rather a well-supported and rigorously tested explanation.

Now, let’s take a look at some examples to further understand what constitutes as a scientific theory.

The Theory of Evolution
One of the most well-known and widely accepted examples of a scientific theory is the Theory of Evolution. This theory explains how species change over time through the process of natural selection. It has been extensively tested and supported by evidence from various fields such as genetics, paleontology, and biology.

The Germ Theory of Disease
Another example of a scientific theory is the Germ Theory of Disease. This theory explains that many diseases are caused by microorganisms such as bacteria and viruses. It has been supported by numerous experiments and observations that demonstrate how certain microorganisms can cause specific diseases.

What about other ideas?

It’s important to note that not every idea or explanation in science qualifies as a scientific theory. For example, ideas that are not testable or cannot be supported by evidence do not qualify as scientific theories. Additionally, ideas that have been disproven or lack sufficient evidence also cannot be considered as scientific theories.


In conclusion, a scientific theory is an explanation for natural phenomena that has been rigorously tested and supported by evidence. The examples above – The Theory of Evolution and Germ Theory – show how these explanations have stood up to repeated testing and have been supported by a wide range of evidence. By understanding what a scientific theory is and what qualifies as an example, we can better appreciate the value of scientific knowledge and the importance of evidence-based explanations.