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The Scientific Method
The Scientific Method Way to solve a problem Step by step planTries to answer a question
The Scientific Method The Scientific Method has 6 steps: ProblemResearch Hypothesis Experiment Data Conclusion
Step 1 - Problem/QuestionYou ask a question about what you observe.
Step 2 - Research Gather information about the problem through observations, books, internet, or past experience. What do you know?
Step 3 - Hypothesis Prediction that can be tested by an experimentAnswers the problem/question May be written in the form If …. then …..
Good Hypothesis Both an independent and dependent variableDeclarative statement - NO I’s or We’s or My or Our
Step 4 - Experiment way to test the hypothesis and collect data under controlled conditions The outcome must be measurable
Independent Variable:- factor that is TESTED - what is DIFFERENT between the groups - what CHANGES between each set-up THERE IS ONLY ONE INDEPENDENT VARIABLE IN AN EXPERIMENT!!
Dependent variable: what is MEASURED during the experiment- affected by the independent variable
Constant Variables: - variables that are kept the SAME- makes the experiment FAIR - there are MANY in an experiment
Experimental Group: - the group that you are testing- group that gets the factor you are testing - group that gets the independent variable
Control Group: - group that DOES NOT get the factor you are testing- group that you check your results against - used to compare results
Good Experiments large sample sizeone factor tested (one independent variable) quantitative or measurable results Large sample size Repeated for accuracy
Step 5 - Observations/DataRecord any observations and data
Observations Qualitative Observationqualities (observable but not measurable) no numbers examples: color, shape, smell, texture
Observations Quantitative Observationsquantities (observable AND measurable) numbers examples: length, volume, temperature
Graphs Line Graph describes how one factor affects a second factorContinuous data
Graphs Circle Graph compares percentages Compares part of a whole
Graphs Column or Bar Graph used for comparison discreet data points
Step 6 Conclusion accept or reject your hypothesisSupport your answer with the data Publish your results
CHAPTER 2: BIOLOGY AS A SCIENCE. Information you gather with your senses Logical conclusions based on observations.
Introduction to Science: The Scientific Method
Quiz 1 - Scientific Processing
Aim: What are the steps to the Scientific Method?
What is Science? Observing Inferring Predicting Testing.
Learn the Steps of the Scientific Method Explain the difference between dependent and independent variables Define an control group Explain what a valid.
September 23, 2010 Objective: Describe the methods scientists use when trying to solve a problem Drill: List steps scientists may use when trying to.
The Scientific Method The Scientific Method. What is Science? The knowledge obtained by observing natural events and conditions in order to discover facts.
A step-by-step way to solve problems. Scientific Method.
Unit 1: The Nature of Science
Scientific Method A blueprint for experiment success.
The Scientific Method involves a series of steps that are used to investigate a natural occurrence.
Writing a Lab Report A blueprint for Experimental design success.
Scientific Method Unit Vocabulary 1. Scientific method – involves a series of steps that are used to investigate a natural occurrence. 2. Problem/Question.
What is Science? - Ideas developed by scientists and the methods used to gain information about the idea. – A process of making observations and asking.
1.3 Scientific Thinking and Processes KEY CONCEPT Scientific Method Science is a way of thinking, questioning, and gathering evidence.
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