scientific inquiry and the scientific method
DESCRIPTION
Scientific Inquiry and the Scientific Method. Understanding the World Around Us. Vocabulary Introduction. Observations/Facts you make with your senses that you know to be true . Quantitative : numbers Qualitative : descriptions that cannot be put in numbers. Vocabulary Introduction. - PowerPoint PPT PresentationTRANSCRIPT
Scientific Inquiry and the Scientific MethodUnderstanding the World Around Us
Vocabulary Introduction
Observation (Facts)
Definition
Examples
•Observations/Facts you make with your senses that you know to be true.•Quantitative: numbers•Qualitative: descriptions that cannot be put in numbers
Vocabulary Introduction
Theory
Definition
Examples
•A time-tested concept that makes predictions about the natural world. Once proposed, it must be tested over again. It may be thrown out or modified.
Vocabulary Introduction
Law
Definition
Examples
•If a theory survives many tests it becomes a law. It summarizes observed experimental facts.
Vocabulary Introduction
Inferring
Definition
Examples
•An explanation or interpretation of observations.•Inferences are based on reasoning, not random guessing
Vocabulary Introduction
Prediction
Definition
Examples
•A forecast of what will happen in the future•Based on past evidence or observations.
Vocabulary Introduction
Observation(Facts)
Theory Law
Definition Definition Definition
Examples Examples Examples
•Observations/Facts you make with your senses that you know to be true.•Quantitative: numbers•Qualitative: descriptions that cannot be put in numbers
•A time-tested concept that makes predictions about the natural world. Once proposed, it must be tested over again. It may be thrown out or modified.
•If a theory survives many tests it becomes a law. It summarizes observed experimental facts.
Vocabulary Introduction
Inferring Prediction
Definition Definition
Examples Examples
•An explanation or interpretation of observations.•Inferences are based on reasoning, not random guessing
•A forecast of what will happen in the future•Based on past evidence or observations.
Steps of Scientific Inquiry Uses senses to make observations. Makes inferences or predictions based on
observations. Research the topic Form a hypothesis Design a controlled experiment to test the
hypothesis Perform the experiment and record data Draw a conclusion
Hypothesis is Accepted
Hypothesis is Rejected
Go back and redesign your hypothesis
Becomes a Theory
Accepted many times and proven mathematically
Becomes a Law
Variable • The one part of an experiment that is manipulated by the scientist
• Present in the experimental group, not present in the control group.
• Example:If you were testing the strength of different paper towels (like you did last year) the type of paper towel will be the variable.
A Controlled Experiment Has…
Control Group
Setup according to “normal” conditions
Experimental Group
Same as the Control Group, but with the variable
• They are exactly the same except for the experimental group having the variable(the one difference)
• The larger the sample size, the more accurate the results
Important Points:
Hypothesis Formation
If The conditions you are setting up (like prongs in thesis statement/more than one)
Then Your predicted results. (what you think will happen)
Because
Your explanation for your predicted results. (why)
Steps of Scientific InquiryUses senses to make observations.
Makes inferences or predictions based on observations.
Research the Topic
Form a Hypothesis
Design a controlled experiment to test the hypothesis
Perform the experiment
Record dataDraw a Conclusion
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