To Be A Possible Answer To A Scientific Question, A Hypothesis Must Be

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To be a possible answer to a scientific question, a hypothesis must be:

  • testable
  • unique
  • written
  • controlled


A hypothesis must be testable to be a possible answer to a scientific question. A hypothesis is an educated prediction of what will happen in an experiment that can be proved or disproved. Unlike a statement or claim, you cannot know if it is true until you test it out first. Many hypotheses are not unique. They are testable to ensure the hypothesis can survive further development and testing over time. They are also not always written down nor easily controlled.


A __________ is a possible explanation for a set of observations or answer to a scientific question.
Factors that can change in an experiment are called.
The sharing of ideas and experimental findings with others through writing and speaking is called _____________.
A scientific _______ is a statement that descries what scientists expect to happen every time under a particular set of conditions.
Facts, figures, and other evidence gathered through observations are called ______.
The factor that may change in response to the manipulated variable is called the __________ ________.
responding variable
An experiment in which only one variable is manipuated at a time is called a __________ experiment.
The process of __________ _______ refers to the diverse ways in which scientists study the natural world and propose explanations based on the evidence they gather.
scientific inquiry
A scientific ______ is a well-tested explanation for a wide range of observations or experimental results.
An ___________ __________ is a statement that describes how to measure a particular variable or define and particular term.
operational definition
The one varaible that is purposely changed to test a hypothesis is called the _________ ________.
manipulated variable
What is a scientific question?
A scientific question can be answered using scientifi steps that include, observing and formulating a hypothesis, gathering evidence by measuring oberservations, and analyzing the observations to formulate a conclusion.
What makes a hypothesis testable?
A hypothesis is testable when observations can be measured and observations are analyzed to support or disprove the hypothesis.
Why is it important to control variables in an experiment?
It is important to control variables in an experiment because scientists want to answer question and keep all variables the same except for the one manipulated variable that will help to answer their question. If more than one variable is manipulated or changed the scientist may not know which variable influenced the results.
When you begin an experiment, why sould you create a table to record your data?
You should create a table to record your data because it will keep your results organized.
Why is there no set path that a scientific must follow?
There is no set path that a scientific inquiry must follow because a scientist does not know what observations may lead to another question. Scientists need to be flexiable so that they can discover new information when they are not “planning” it.
Define the term scientific inquiry.
Scientific inquiry is the many ways scientists study the natural world and explain the evidence they gather from observations.
A friend claims that celing fans are better than air conditioning because they cool the air faster than air conditioners do. Could you investigate this through scientific inquiry? Explain.
You could investigate this through scientific inquiry by testing the temperature of a ceiling fan VS a air conditioner for cooling air in a certain amount of time.
What kind of data would you need to collect to carry out the air conditioner/celing fan experiment?
The data you need to collect includes changes in temperature over time.
What is meant by saying that a hypothesis must be testable?
A hypothesis must be testable and scientists must be able to gather evidence that will either support or disprove the hypothesis.
Every time you and your friend study for an exam while listening to classical music, both of you do well on the exam, What testable hypothesis can you develop from your observations?
The testable hypothesis could be if a student listens to no music while studying for an exam and classical music while studying for an exam than the student will score higher on an exam they take after listening to classical music.
What is a scientific theory? What is a scientific law?
A scientific theory is a well tested explanation for a wide range of experimental results. A scientific law is a statement that describes what will happen every time under certain conditions in nature. For example gravity will make a ball fall to the ground every time you drop it.
How do scientific theories differ from scientific laws?
Scientific theories are supported by experimental evidence while a scientific law describes observations that happen the same way every time.
The students who conducted the cricked experiment concluded that their results supported their hypothesis. Can their supported hypothsis be called a theory? Why or why not?
Their supported hypothesis cannot be called a theory because it is only one test. A theory is based on many tests.

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