Mid Steps
Scientists test a hypothesis by
A. formulating questions.
B. designing models.
C. doing experiments.
D. drawing conclusions.
C. doing experiments.
Facts, figures, and other evidence learned through observation are called
A. variables.
B. experiments.
C. questions.
D.data
D.data
Which of the following steps to solve a problem is completed last?
A. analyzing data
B. recognizing and identifying the problem
C. drawing conclusions
D. testing a hypothesis
C. drawing conclusions
A series of logical steps that is followed in order to solve a problem is called the
A. experimental process.
B. scientific theory.
C. scientific method.
D. model method
C. scientific method.
A chart showing the amount of rain each month in a region is an example of a scientist's
A. variables.
B. inferences.
C. data.
D. conclusions
C. data.
A factor in an experiment that can change is a(n)____.
A. observation
B. variable
C. control
D. hypothesis
B. variable
When you decide whether or not the data
support the original hypothesis, you are
A. making an inference.
B. making an observation.
C. drawing a conclusion.
D. posing a question.
C. drawing a conclusion.
What characteristic must be true of a good hypothesis?
A. It must be correct.
B. It must have been observed many times.
C. It must involve quantitative data.
D. It must be testable by observation or experiment
D. It must be testable by observation or experiment
After scientists analyze the results of their experiments, they ____.
A.form hypotheses
B. include a control
C. communicate those results to other people
D. choose the variables they want to test
C. communicate those results to other people
Which of the following steps to solve a problem must be completed first?
A.analyzing data
B.recognizing and identifying the problem
C. forming a hypothesis
D. testing a hypothesis
B.recognizing and identifying the problem
When a scientist shares his or her findings with other scientists, the scientist is
A. communicating.
B. experimenting.
C. hypothesizing.
D. theorizing
A. communicating.
For a scientific theory to be valid, it must allow you to
A. perform experiments.
B. obtain new results each time.
C. find a new, more complex explanation.
D. make predictions
A. perform experiments.
A statement that describes what scientists expect to happen every time under a given set of conditions is called a scientific
A. observation.
B. hypothesis.
C. inference.
D. law
B. hypothesis.
A sample that is treated exactly like the other experimental groups except that the variable is not applied to it is a(n) ____.
A. observation
B. variable
C. control
D. hypothesis
C. control
A good way to organize and record your results and observations is ____.
A. in a data table
B. by using a calculator
C. with a balance or spring scale
D.by having a hypothesis before you begin your experiment
A. in a data table
A controlled experiment is designed to test a(n)
A. conclusion.
B. hypothesis.
C. data.
D. measurement.
B. hypothesis.
In a controlled experiment, a scientist is studying how long it takes parachutes of different sizes to fall to the ground. What is the manipulated variable?
A. the size of the parachute
B. the height from which the parachute is dropped
C. the size of the object carried by the parachute
D. the time it takes for the parachute to drop
A. the size of the parachute
Which skill are you using when you use your five senses to gather information?
A. posing questions
B. observing
C. developing hypotheses
D. designing experiments
B. observing
One way to reduce bias in an experiment is to ____.
A. ask only girls a question about a school topic
B. take numerical measurements of the results
C. use descriptive phrases as your data
D. make sure that the results come out the way you want them
B. take numerical measurements of the results
What skill is a scientist using when she listens to the sounds that whales make?
A. interpreting data
B. developing hypotheses
C. making observations
D. drawing conclusions
C. making observations
According to the scientific method, how should conclusions be stated?
A. so that no one can refute the conclusion
B. so that it works with only one set of data
C. so that it is completely correct, with no mistakes
D. in a form that can be evaluated by others
D. in a form that can be evaluated by others