1 ProblemQuestion 2 ObservationResearch 3 Hypothesis 4 Experiment 5 Collect and Analyze data 6 Conclusion 7 Report the Results 8 Repeat the experiment Scientific Method 1 Problem ID: 686630
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Slide1
Scientific Method – Series of StepsSlide2
1. Problem/Question
2. Observation/Research
3. Hypothesis4. Experiment5. Collect and Analyze data6. Conclusion7. Report the Results8. Repeat the experiment
Scientific MethodSlide3
1. Problem
This is a question that the experiment is asking
Example: Why does my breath smell in the morning? Slide4
Observation/Research
Make observations and do research
Examples:Research about teeth, bacteria, and oral hygieneSlide5
Hypothesis
Needs to be in a IF
THEN statementExample: IF a person brushes and flosses their teeth twice a day, THEN their breath will not smell. Slide6
Hypothesis
IF
a person brushes and flosses their teeth twice a day (what you’re changing in the experiment), THEN their breath will not smell (what you think will be affected). Slide7
EXPERIMENT
It has 2
groups : the control group and the experimental group. The control group remains the same The experimental group has one variable changedSlide8
Control
Students will brush their teeth “normally,” twice a day
Remains the sameExperimental
Students will brush and floss their teeth twice a day
We’ve changed one variableSlide9
Independent Variable
The variable that
YOU CHANGE is called the independent variableThe experimental group receives the independent variableSlide10
Dependent Variable
The dependent variable is what’s
affected by the independent variableSlide11
What is the independent variable in our experiment?
IF a person
brushes and flosses their teeth twice a day, THEN their breath will not smell. Slide12
What is the dependent variable in our experiment?
IF a person brushes and flosses their teeth twice a day, THEN
their breath will not smell. Slide13
5
. Collect and Analyze data
6. Make a Conclusion7. Report the Results8. Repeat the experimentAfter the experiment you will…..Slide14
What will always make an experiment better
Having
a larger sample size (ex: more people)Repeating the experimentHaving an equal number of males to femalesIncreasing the number of trials