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Scientist Are Like Detectives

by MichelleConner

Scientists and detectives have one major connection - both investigate and gather clues to learn about an event or process. Scientists derive evidence through conducting experiments. Experiments test an idea or a hypothesis to generate a specific outcome. Every experiment is different; so all of them will not follow the same step-by-step directives, but many follow a common investigation procedure.

A scientific question is the basis for an investigation. Upon posing a question, the scientist can initiate his or her experiment. The scientific question is answered by collecting clues or evidence. "Which freezes faster, salt or fresh water?" This is an example of a scientific question because the scientist can carry out an investigation and gather information to answer the question. Checking out the most recent information about online schools may speed your success.

After establishing the scientific question, the scientist develops a hypothesis. A hypothesis is the scientist's prediction about an experiment outcome. It is based on the scientist's observations and previous experiences. It differs from a prediction in that it must be something that can be tested. The hypothesis statement should be formulated using "if" and "when" - "If I add salt to fresh water, then the water will take longer to freeze." Scientists can use hypothesis statements as a rough outline of the experiments they should perform.

After the hypothesis, the scientist must design an experiment. The experiment will be implanted to test the hypothesis. It is best to write out a step-by-step procedure so that each observation and measurement can be chronicled. The experiment design must include two important elements, the controlling variables and forming operational definitions.

Variables are any factors that can change the direction of an experiment. A manipulated variable is a single variable that can be changed throughout an experiment. In regards to the water experiment referenced above, the manipulated variable is the amount of salt added to the water. A responding variable refers to what is measured or observed to attain the results. In the case of the water experiment, the responding variable is how long the water takes to freeze, so, essentially it is the time.

The other component of a well-designed experiment is having clear operational definitions. An operational definition is a statement that describes how a particular variable is to be measured or how a term is to be defined. How will you determine if the water has frozen? Insert a stick in each container. What is the definition of "frozen" in relation to the experiment? This is the time at which the stick can't move anymore. Searching the internet for more details about college online is a smart move.

The information collected from the observations and measurements is called data. Data is organized and classified into a data table or graph so that the scientist can analyze the information to look for any patterns and trends. It can reveal if the information supported the hypothesis, pointed out any flaws in the experiment, or lacks substance and requires more data.

About the Author: Frank Cole

The final step, as you will learn while studying on campus or online school, in the investigation procedure is establishing a conclusion that sums up what you have learned from an experiment. Some conclusions generate new scientific questions, which result in using the same investigative procedure learned in classes at your accredited online colleges.

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Scientist Are Like Detectives