scientific method is the way scientists learn and study the world around them. the basis of...
TRANSCRIPT
THE SCIENTIFIC METHOD
Scientific Method is the way scientists learn and study the
world around them. The basis of scientific method is asking questions and then
trying to come up with answers Just about everything begins with a question and someone
has an urge to answer that question Its as easy as asking “Why do cats and dogs have hair?”
One answer could be that it keep them warm
Scientific Method is a rational, logical thought process that is used to figure out facts and truths
EXPERIMENTAL EVIDENCE IS WHAT MAKES ALL OF THE OBSERVATIONS AND ANSWER IN SCIENCE VALID (TRUTHFUL OR CONFIRMED)
•Statements must be confirmed with loads of evidence• Scientist start with observations and then make a hypothesis (an educated guess)• Then starts the fun by proving the hypothesis through many different trials and test to show why the data and results are correct.• Using controls which
quantitative (based on values and figures, not emotions)
• Qualitative is pertaining to or concerned with quality or qualities•Scientist can examine their data and
develop newer ideas• This process will lead to more
observation and refinement of hypotheses.
THE WHOLE PROCESS
There are different terms used to describe scientific ideas based on the amount of confirmed experimental evidence.
Hypothesis- a statement that uses a few observations- an idea based on observations without experimental evidenceTheory- uses many observations and has loads of experimental evidence- can be applied to unrelated facts and new relationships- flexible enough to be modified if new data/evidence introducedLaw- stands the test of time, often without change- experimentally confirmed over and over- can create true predictions for different situations- has uniformity and is universal
A model is a scientific statement that has some experimental validity or is a scientific concept that is only accurate under limited situations.
QUIZ TIME! QUESTION 1:
The scientific method was developed to help scientists organize the process of solving problems.
TrueFalse
CORRECT! The scientific method is an objective
step-by-step way of looking at natural events. When anyone has a question about the world around them, they use these methods and procedures to explain and answer that question. The scientific method can also be used to prove (or disprove) the statements of another scientist or person. The entire process requires observable and quantifiable evidence and data.
INCORRECT! The scientific method is an objective
step-by-step way of looking at natural events. When anyone has a question about the world around them, they use these methods and procedures to explain and answer that question. The scientific method can also be used to prove (or disprove) the statements of another scientist or person. The entire process requires observable and quantifiable evidence and data.
QUIZ TIME! QUESTION 2:
Which of these is not a step of the scientific method?
HypotheisExperimentConclusionPlagiary
INCORRECT!There are about six basic steps in the scientific method of solving problems. You have to start with a problem or question and then develop a
hypothesis that offers an answer to the question. You then develop and perform an experiment and record your results. You finish with an analysis of your results and develop a conclusion that would
(hopefully) answer the original question.
CORRECT!!! There are about six basic steps in the
scientific method of solving problems. You have to start with a problem or question and then develop a hypothesis that offers an answer to the question. You then develop and perform an experiment and record your results. You finish with an analysis of your results and develop a conclusion that would (hopefully) answer the original question.
QUIZ TIMEQuestion 3Which of these words would you NOT
associatewith the scientific method?
Disorganized OrganizedDataControl
CORRECT!!!The scientific method creates an organized framework that helps
scientists (and everyone) solve problems. As you
complete an experiment that tests variables and has controls, you record
data and results.
INCORRECT!
The scientific method creates an organized framework that
helps scientists (and everyone) solve problems. As you complete an experiment that tests variables and has
controls, you record data and results.
QUIZ TIMEQUESTION 4:
A hypothesis is...
A Random ThoughtAn AnswerAn Educated GuessAn Experiment
INCORRECTA hypothesis is an educated guess that
offers a possible answer to a problem. An
experiment must be developed to prove the
accuracy of the hypothesis.
CORRECT!A hypothesis is an educated guess that
offers a possible answer to a problem. An
experiment must be developed to prove the
accuracy of the hypothesis.
QUIZ TIMEQUESTION 5:
Which of these would be called results?
Number of Fruit FliesCounting Fruit FliesSeeing Fruit Flies on an AppleWondering Why a Fruit Fly was Born
INCORRECT
The number of fruit flies would be the only results. The other
choices are all steps in the process (Hypothesis, Experiment,
Observation).
CORRECT!!!
The number of fruit flies would be the only results. The other
choices are all steps in the process (Hypothesis, Experiment,
Observation).
QUIZ TIME
QUESTION 6: What do you do to test a hypothesis?
GuessCreate a Spreadsheet with DataPublish a Scientific PaperDesign an Experiment
INCORRECT
You need to conduct a series of procedures to test any
hypothesis. The developed experiment uses variables
(changing factors) and controls (unchanging
examples).
CORRECT!!!
You need to conduct a series of procedures to
test any hypothesis. The developed experiment
uses variables (changing factors) and controls
(unchanging examples).
QUIZ TIMEQUESTION 7:
A control group is used as a comparison to the group where things (variables) are changing.
TrueFalse
CORRECT!!
The control group of an experiment is a group that is not experimented on. For
example, if you wanted to see what happened when you increase UV
radiation on plants, you would have a control group that did not have any
different UV levels. They would be used as a baseline or static group in the
experiment.
INCORRECTThe control group of an experiment is a group that is not experimented on. For
example, if you wanted to see what happened when you increase UV
radiation on plants, you would have a control group that did not have any
different UV levels. They would be used as a baseline or static group in the
experiment.
QUIZ TIMEQUESTION 8:
An independent variable is a factor that changes because of procedures conducted on the dependent variable.
TrueFalse
INCORRECT!
The opposite is true. A dependent variable is a
factor that changes because of procedures
conducted on the independent variable.
CORRECT!!The opposite is true. A dependent variable is a factor that changes
because of procedures conducted on the
independent variable.
QUIZ TIMEQUESTION 9:
Experiments are usually conducted one time and by one team to speed up the scientific process.
TrueFalse
INCORRECT!Experiments are performed dozens and
hundreds to times before a scientific statement is accepted as a truth. The experiment would be performed using
the same procedures. To prove the original hypothesis, the other testing team must be able to generate the
same results.
CORRECT!!Experiments are performed dozens and
hundreds to times before a scientific statement is accepted as a truth. The experiment would be performed using
the same procedures. To prove the original hypothesis, the other testing team must be able to generate the
same results.
QUIZ TIMEQUESTION 10:
Experiments often test multiple variables.
TrueFalse
INCORRECT!
Experiments test for one independent variable. There can be multiple
dependent variables that change during the
procedures.
CORRECT!!
Experiments test for one independent variable. There can be multiple
dependent variables that change during the
procedures.
THANKS FOR PLAYING!!! Make sure you are able to…
List the steps to problem solvingExamine the design of an experiment and
identify its partsLogically design an experiment