What is the primary purpose of a hypothesis in scientific research?

The primary purpose of a hypothesis in scientific research is to make a testable prediction. A hypothesis is formulated based on observations and existing knowledge, and it predicts the relationship between variables. This prediction can then be tested through experimentation or observation, allowing researchers to gather data and determine whether the hypothesis is supported or refuted.

For example, if a scientist hypothesizes that increasing sunlight will increase plant growth, this prediction can be rigorously tested by setting up an experiment with controlled variables. The ability to test a hypothesis is essential to the scientific method, as it guides researchers in their investigations and helps them to systematically explore and understand the natural world.