EVERYDAY SCIENCE

Detailed explanation-1: -The precise definition of a hypothesis is either a suggested explanation for an observable phenomenon, or a reasoned prediction of a possible causal correlation among multiple phenomena. In contrast, a theory is a tested, well-substantiated, unifying explanation for a set of verified, proven hypotheses.

Detailed explanation-2: -After observing something, a scientist tries to explain what has been seen. The explanation of an observation is called a hypothesis. There is always at least one alternative hypothesis. The alternative hypothesis suggests that a specific factor causes a result.

Detailed explanation-3: -A hypothesis is a possible explanation for a set of observations or an answer to a scientific question. A hypothesis must be testable and measurable.

Detailed explanation-4: -An experiment is designed to test the hypothesis by observing the response of one variable to changes in a limited number of other variables under controlled conditions. The data are analysed to determine whether a relationship exists which either confirms or refutes the hypothesis.

Detailed explanation-5: -A theory is a carefully thought-out explanation for observations of the natural world that has been constructed using the scientific method, and which brings together many facts and hypotheses.