Designing an Experiment

Uploaded from authorPOINTLite
Views:
 
Category: Education
     
 

Presentation Description

No description available.

Comments

Presentation Transcript

Designing an Experiment : 

Designing an Experiment Pose a Question Develop a Hypothesis Plan the Procedure Interpret the Data Draw Conclusions

Posing Questions : 

Posing Questions Scientific questions are limited to the natural world Can be answered by observations or evidence Be specific about the question Be sure the question identifies a factor that you can investigate

Developing a Hypothesis : 

Developing a Hypothesis Hypothesis- a possible explanation for a set of observations or answer to a scientific question Make sure the hypothesis can be tested through an experiment Word the hypothesis as an if…. then…. statement

Variables : 

Variables Manipulated variable- the variable that that you purposely change Responding Variable- the factor that may change as a result of the manipulated variable

Writing the Procedure : 

Writing the Procedure Forming operational definitions – an operational definition is a statement that describes how a variable is to be measured, or how an object or condition is to be recognized The word operational means “describing what to do”

Write the Procedure : 

Write the Procedure

Writing Operational Definitions : 

Writing Operational Definitions The definition should be clear and precise A good operational definition for the measurement of a variable includes the tool used to measure and the unit of measure used It should say how often the measurement should be made

Writing definitions : 

Writing definitions Definition

Interpreting Data : 

Interpreting Data Data- observations and measurements made during an experiment

Tips for Interpreting Data : 

Tips for Interpreting Data Organize data into a table Make a graph of the data Look for trends or patterns in the data

Drawing Conclusions : 

Drawing Conclusions Make a statement summing up what you have learned from an experiment The conclusion of an experiment relates to the hypothesis Accept or reject your hypothesis Cite possible errors Cite areas for future research