In __________ __________ every member of the target population has an equal chance of becoming part of the sample.
During an experiment, which factors must be controlled so that researchers can draw a logical conclusion from the experiment?
A possible explanation for a set of observations or answer to a scientific question is called a(n)
One useful tool that may help a scientist interpret data by revealing unexpected patterns is a
Which of the following is a valid reason why a scientist might reject a scientific theory?
A summary of what you have learned from a scientific experiment is called a(n)
During an experiment, if you purposely change the temperature to test a hypothesis, the temperature is called the
What stage of the technology design process involves coming up with ideas or different ways to solve a problem?
An engineer is a
In science, a hypothesis must be
The five steps of the engineering design process in order are
Making a statement or claim about what will happen in the future based on past experience or evidence is called
Explaining or interpreting the things you observe based on reasoning from what you already know is called
A well-tested explanation for a wide range of observations or experimental results is called a scientific
In a scientific experiment, facts, figures, and other evidence gathered through observations are called
When scientists put things into categories or group together items that are alike in some way, they are
When scientists create a representation of a complex process, they are