What are the main methods of scientific inquiry?

1, observation is a basic method of scientific inquiry. Scientific observation can be made directly with the naked eye, with the help of magnifying glasses, microscopes and other instruments, as well as cameras, video recorders, video cameras and other tools, and sometimes measurement is needed. Scientific observation should have a clear purpose; Observation should be comprehensive, meticulous and realistic, and recorded in time; Planned and patient; Think positively and record in time; We should exchange views and have a discussion.

2. Experimental method is the main method of biological research, which uses specific instruments and materials to discover or verify scientific conclusions through purposeful and step-by-step experimental operation, observation and record analysis. General steps: find problems and ask questions; Collect information related to the problem; Make assumptions; Design the experimental scheme; Conduct experiments and record them; Analyze experimental phenomena; Draw a conclusion.

3. Investigation is one of the common methods of scientific inquiry. First of all, we should make clear the purpose and object of the investigation and make a reasonable investigation plan. Sometimes it is necessary to select some objects as samples because of the large scope of investigation. We should record it truthfully during the investigation. We need to sort out and analyze the survey results, and sometimes we need to use mathematical methods to make statistics.