experiment, an organized procedure to study something under controlled conditions, observation, the process of obtaining information by using the five senses, hypothesis, a testable idea or explanation that leads to scientific investigation, independent variable, the factor that is deliberately changed in order to test the effect of change on another variable, dependent variable, the factor that is measured to gather results, constant, a variable that is not allowed to change in the investigation, data, measurements and information gathered during an investigation that can be used in calculating or reasoning, scientific law, a statement that describes what scientists expect to happen every time under a particular set of conditions, scientific theory, a well supported explanation about the natural world, explains observations that scientists have made, model, a representation of something in the natural world, an object or an event, qualitative data, data that cannot be counted, measure or easily expressed using numbers, quantitative data, data using numbers, inference, logical conclusion made from past knowledge and observations

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