scientific method

scientific method

1. scientific methodology involves

   • observing and asking questions
     • observation is the act of noticing and describing events or processes in a careful, orderly way.
     • when you are done observing, questions are generated.
   • inferring and forming a hypothesis
     • after the question, scientists use inferences, which is a logical interpretation based on what they already know.
     • a hypothesis is a scietific explanation for a group of observations that can be tested in ways that support or deny it.
   • designing controlled experiments
     • when hypothesis are tested, only one variable should change. The rest variables shoulb be controlled.
     • independent variable: the cause
     • dependent variable: the effect
     • control and experimental groups: a control group is exposed to the same conditions as the experimental group except for one independent variable.
   • collecting and analyzing data
     • there are two types of data, quantity and qualitive.
     • research tools are the tools that help to analyze the data
     • sources of error is basically trying to not make any error during the experiment.
   • drawing conclusions
     • to draw conclusions you need to support or revise that the hypothesis is valid and its true.

2. when experiments are not possible, you may do observations.