Like all science, biology is a process of inquiry.

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Presentation transcript:

KEY CONCEPT Science is a way of thinking, questioning, and gathering evidence.

Like all science, biology is a process of inquiry. Scientists make careful and systematic observations. Scientists record observations as data. Scientists form a hypothesis as a possible answer to a question. “ If…then” statement. Scientists test their hypotheses and analyze their data.

Testing Hypotheses Collect data to support or reject the hypothesis Analyzing Data Use math to figure out what the data means Use graphs or charts Evaluating Results Determine if the data and results were valid or not

Biologists use experiments to test hypotheses. Observational studies allow scientists to describe a phenomenon.

2 kinds of data Quantitative data: uses numbers and measurements Qualitative data: uses description or drawings

Experimentals allow scientists to determine what causes a phenomenon.

Experimental studies allow scientists to determine what causes a phenomenon. Independent variables are manipulated. Dependent variables are observed and measured. Constants are conditions that are kept the same Also called controls.

dry mix

A theory explains a wide range of observations. Theories explain a wide range of observations and experimental results. A theory is supported by a wide range of scientific evidence. Theories can change based on new evidence.