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Copy of The Scientific Method

This presentation will present the seven steps of the scientific method
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on 23 October 2013

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Transcript of Copy of The Scientific Method

1: Make an observation:
2: State the problem as a question:
4:Test the hypothesis with an experiment:
5: Record and organize the data:
3:Form a hypothesis:
6: Analyze the data:
7: Draw conclusions:
Ex: Use all five senses to gather data
Ex: Sight, smell, taste, hearing, and touch
Two types of questions:
Qualitative

- describes characteristics like color, shape, size,.....
Quantitative

- tells how many, how much, or how often. Is described with a number and a unit.
Hypothesis

- a possible prediction to the solution for the question or problem.
Ex: A controlled experiment has 3 types of variables and 2 types of groups.
Manipulated variable

- the variable the experimentor changes on purpose.
Is plotted on the x-axis of a graph.
Responding variable

-
The variable that responds to the variable that was changed.
Controlled variables

- variables kept the same between the 2 groups in a controlled experiment.
Experimental group
- group where one thing is changed.
VARIABLES:
GROUPS:
Control Group

- group where nothing is changed.
Is used to compare to the experimental group to see if there was a difference between the 2 groups.
Ex: First record data into a data table and then into a graph: a pictorial representation of the data.
Bar graph

- uses columns to compare descriptive data.
GRAPHS:
Circle graph (pie chart)

- uses percentages to show how a part relates to the whole.
Line graph

- uses a series of dots connected by a line to show change over time or temperature.
Ex: Check the data to determine trends, patterns or whether or not the data supports the hypothesis.
The conclusions should include:
Ex: Factual results:
summarizes the data and makes comparisons between the experimental group and the control group.
Ex: Support of hypothesis:
State whether or not the data supports the hypothesis and use examples of the data to support the hypothesis.
Ex: Inferences:
explains why you think the data turned out the way it did.
Ex: Mistakes:
record all mistakes so others that repeat your experiment do not make the same mistakes.
Ex: Recommendations:
tell how to fix any mistakes or tell how to do the experiment better.
Ex: Two new questions:
the questions should lead to a slightly different experiment.
THE SCIENTIFIC METHOD
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