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As many as are necessary, as few as possible.
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What type of scientific investigation involves identifying and controlling variables?
laboratory experiment
The scientific investigation of the relationship between two or more variables describes which of these?
ReSearch
What is the function of a control in a scientific investigation?
You establish a controlled variable from which you can compare your results from your experimental variables.
What should be done when designing a controlled experiment scientific investigation?
1.) List the needed materials. 2.) Plan the variables. 3.) List the procedures.
What step of the scientific method involves identifying variables?
The first step of the scientific method requires scientists to observe in order to obtain information. The next step is to formulate a hypothesis.
What are the variables in the scientific investigation?
They're the parameters that vary. Hence the name.
The scientific investigation of the relationship between two or more variables describes which of these?
ReSearch
What type of scientific investigation involves identifying and controlling variables?
laboratory experiment
What is the function of a control in a scientific investigation?
You establish a controlled variable from which you can compare your results from your experimental variables.
How many independent variables are there in a simple controlled investigation?
two
What is descriptive investigation?
a descriptive investigation is a scientific ivestigation that collects data which measure or decribe objects or events. it collects qualitative & quantitative data. it includes a question, but no hypothesis ; no variables are manipulated .
Why is that trait useful in scientific investigation?
There are a great many traits that are useful in scientific investigation. Being an excellent observer is a useful trait for example.
What should be done when designing a controlled experiment scientific investigation?
1.) List the needed materials. 2.) Plan the variables. 3.) List the procedures.
What is the best number of variables for a scientific investigation?
In an experiment containing a number of possible variables only one of these should be altered in each individual experiment. Otherwise it is not possible to determine which variable is responsible for a particular change.
What are the three variables that play an important role in a Practical Investigation?
Independent Variables, Dependent Variables and Extraneous Variables.
What step of the scientific method involves identifying variables?
The first step of the scientific method requires scientists to observe in order to obtain information. The next step is to formulate a hypothesis.
Characteristics of scientific investigation?
A scientific investigation is a method of identifying a question through observations. Next, a hypothesis is formed as a tentative explanation for the question. Third, experiments are performed to test the hypothesis. Finally, a scientific paper is written to explain the conclusions.
