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Unit 2

Collecting Data & The Scientific Method

QuestionAnswer
Step #1 Choose a problem - what do you want to learn?
Step #2 Research the problem - gather as much information
Step #3 Write a hypothesis - predict the outcome
Step #4 Experiment - Test your hypothesis
Step #5 Analysis your data - organize your findings
Step #6 Draw a conclusion - share your results to prove hypothesis correct or incorrect
Data Table used to organize and present observations and measurements
Graphs are kinds of pictures used to present quantitative data
Graphs should include... A title, headings, axis line letters, increments (numbers), categories
Y axis Vertical axis (why so high) - LeBron James line
X axis Horizontal axis (punched out) Mike Tyson line
Bar Graph used to compare quantitative and qualitative data
Variables are factors that can affect the results of an experiment
Independent Variable is the variable that you change during an experiment - can only change 1 variable
Dependent Variable is the variable that is the outcome of an experiment
Controlled Variables is all other variables in an experiment that are kept the same
Vertical axis Y (up and down)
Horizontal axis X (side to side
Data Table where you organize your collect data
Graphs display collected data in picture form
Hypothesis scientists make a prediction of the outcome of an experiment before they try the experiment
Which variable is placed in the IF part of a hypothesis? IV = independent variable
Which variable is placed in the THEN part of a hypothesis? DV = dependent variable
What does it mean to REJECT your hypothsis? the statement is proven false
What does it mean to CONFIRM your hypothsis? the statement is proven true
Why do scientists use experiments? to answer questions they have about the world
What is a scientific question? something that can be tested to gather information
Mr. Pullen wants to know your favorite color - Is this a testable questions??? NO - it's an opinion
What is the average height of a 6th grader? - Is this a testable question? YES - you can collect data
If you confirm or accept your hypothesis, you are.... saying that your hypothesis is proven TRUE
If you deny or reject your hypothesis, you are .... saying that your hypothesis is proven FALSE
Created by: chrispullen1978
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