BELL RINGER
•What does the
word Hypothesis
mean?
BELLRINGER
• A hypothesis is an educated guess on what is going to happen next
WHAT DO SCIENTIST USE
TO SOLVE PROBLEMS???
Science
THAT’S RIGHT!!!!
The Scientific
Method
THE SCIENTIFIC METHOD
• Learning Target:
I can demonstrate an understanding of how
scientific inquiry and technological design,
including mathematical analysis, can be
used appropriately to pose questions, seek
answers, and develop solutions.
THE STEPS OF THE SCIENTIFIC
METHOD
• Step 1- Define the problem (make an observation)
• Step 2-Research the problem (ask a question)
• Step 3-Form a hypothesis (make a prediction)
• Step 4-Test the hypothesis (do a test or
experimentation)
• Step 5-Draw a conclusion (analyze)
• The Scientific Method Song
THE SCIENTIFIC METHOD
EXPLAINED
• Define the problem
• In order for the scientific method to be used, the problem must be
identified.
• The purpose is the statement used to explain the problem.
• Research the problem
• Research may occur through various observations
• Includes using encyclopedias, textbooks, the internet, word of
mouth conversations, as well as just looking.
• Form a hypothesis or an “educated guess”
• A testable explanation based on a set of observations
• A prediction may be made concerning the hypothesis.
TESTING THE HYPOTHESIS
• The hypothesis will be tested through experimentation.
• All experiments should have different variables.
• Controlled variable (always stays the same)
• Independent variable (changed)
• Dependent variable (may or may not change depending on the
“independent variable)
A scientific investigation should only have one
independent and one dependent variable.
(always make sure to write the steps of the procedure in a neat
and easy to read format)
RESULTS OF THE EXPERIMENT
• Collect, analyze, and interpret the data from the
experiment.
• Data- recorded facts or measurements
• Quantitative
• Qualitative
• Results are gathered from your data
• Remember that procedural errors can construe the
results
DRAW CONCLUSIONS
• Your hypothesis will be rejected or accepted
based on the results of your experiment.
• If rejected, a new hypothesis may be formed
and a new experiment may be performed.
• A conclusion will tell you what has been
learned.
THE DIFFERENCE BETWEEN THE
TRUTH AND THE “TRUTH”
• Form a theory truth
• a theory can be rejected or modified over
time through experimenting
• based on the results of your experiment
• Scientific law - a concise verbal or
mathematical statement of a relationship
between phenomena that is always the same
under the same conditions
MODELS AND TECHNOLOGY
•Models and technology can be used
during the experiments or processes
to help reach or solve problems.
REPRODUCIBLE INFORMATION
•All experiments or investigations must
be reproducible
•This leads to credibility, accuracy, and
validity of the investigation
MATCHING DEFINITIONS
• Independent Variable - factor in an experiment that is
purposely changes
• Hypothesis - a testable explanation based on a set of
observations or an educated guess
• Credible - offering reasonable evidence for being
believed
• Quantitative data - data collected using measuring
tools; deals with number
DEFINITIONS
• Dependent Variable - Factor in an experiment that may
change in response to the manipulated variable.
• Technology - Man-made uses of scientific knowledge
• Qualitative Data - Data collected using the senses.
• Controlled Variable - Factor in an experiment that a scientist
purposely keeps the same: the norm.
• Inference - Logical interpretation based on prior knowledge
and experience.
DEFINITIONS
• Data - Evidence; information gathered from an
experiment.
• Theory - A statement based on the results of the
experiment that may be changed or modified.
• Scientific Method - A process used to solve
problems.
• Conclusion - Tells what one has learned from an
experiment.
• Procedural Error - Mistakes made in conducting the
DEFINITIONS
• _______________Evidence; information gathered from
an experiment.
• _______________A statement based on the results of
the experiment that may be changed or modified.
• _______________ A process used to solve problems.
• _______________Tells what one has learned from an
experiment.
• _______________Mistakes made in conducting the
experiment.
MATCHING GAME
• ___________factor in an experiment that is purposely
changes
• ___________a testable explanation based on a set of
observations or an educated guess
• ___________offering reasonable evidence for being
believed
• ___________data collected using measuring tools;
deals with number
MATCHING DEFINITIONS
• ____________Factor in an experiment that may
change in response to the manipulated variable.
• ____________Man-made uses of scientific knowledge
• ____________Data collected using the senses.
• ____________Factor in an experiment that a scientist
purposely keeps the same: the norm.
• ____________Logical interpretation based on prior
knowledge and experience.