Hypothesis - an idea to explain an observation. In science it must be a testable hypothesis. This means that the explanation can be tested by a scientific enquiry such as an experiment., Prediction - a guess, using your knowledge and understanding, at what might happen when an experiment or investigation is carried out., Investigation - a process to find something out, which may or may not involve an experiment., Experiment - a process in an investigation when a condition or variable is changed to see how it affects other conditions or variables., Variables - features that are investigated in an experiment. There are three kinds:, Independent variable - this is the variable or condition that the scientist changes in the experiment., Dependent variable - this is the variable or condition that changes as a result of changing the independent variable., Control variable - this is a variable that could affect the results of the experiment but is not to be investigated at this time, so it is kept constant or the same.,

Introducing science

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