WorksheetsUnit one review scientific method
Total questions: 24
Worksheet time: 36mins
What is the difference between a dependent variable (DV) and an independent variable (IV) in an experiment?
The DV is the variable that is manipulated; the IV is observed for changes
The DV is observed and the IV is the variable that is manipulated
The DV is the variable that is kept constant and the IV is manipulated
The IV is the variable kept the same and the DV is the one that is manipulated
Which of the following is NOT true of a control group?
The control group is used for comparison in an experiment
The control group does not receive the experimental treatment
The control group is not always needed in an experiment
The control group has exactly the same characteristics of the experimental group, except for the variable applied.
A good way to organize and record your results and observations is
By having a hypothesis before you begin your experiment
By using a data table
By using a calculator
By making a hypothesis
Which skill are you using when you use your five senses to gather information?
Posing questions
Observing
Developing hypotheses
Designing experiments
What characteristic must be true of a good hypothesis?
It must be correct
It must involve quantitative data
It must be testable by observation or experiment
It must be observed many times
A sample that is treated exactly like the other experimental groups except that the variable Is not applied to it is a(n) ____.
Observation
Control
Hypothesis
Variable
In a controlled experiment, a scientist is studying how long it takes parachutes of different sizes to fall to the ground. What is the independent variable?
The size of the parachute
The height from which the parachute is dropped
The size of the object carried by the parachute
The time it takes for the parachute to drop
After scientists analyze the results of their experiments, they ____.
Form a hypothesis
Communicate those results to other people
Choose the variables they want to test
Include a control
A factor in an experiment that can change is a(n)____.
Observation
Variable
Control
Hypothesis
Measurements of the heights of various plants in an experiment are called
Data
Inquiries
Theories
Inferences
When you decide whether or not the data supports the original hypothesis, you are
Making an inference
Making an observation
Drawing a conclusion
Posing a question
When a scientist shares his or her findings with other scientists, the scientist is
Communicating
Experimenting
Hypothesizing
Theorizing
According to the scientific method, how does a physicist formulate and objectively test a hypothesis
By defending an opinion
By interpreting graphs
By experiments
By stating conclusions
A series of logical steps that is followed in order to solve a problem is called the
Experimental process
Scientific theory
Scientific method
Model method
In the scientific process, which comes first?
Observation: using your senses to gather information
Inference: explain data based on prior knowledge
Prediction: anticipate a future event
Hypothesis: a testable explanation for a set of data
Determine if the following are qualitative or quantitative observation:
20% of survey respondents bought ice cream today.
Qualitative
Quantitative
Determine if the following are qualitative or quantitative observations:
The man was wearing a purple shirt
Qualitative
Quantitative
Determine if the following are qualitative or quantitative observation:
The flowers smell sweet.
Qualitative
Quantitative
Determine if the following are qualitative or quantitative observation:
The student received a 95 on their first test.
Qualitative
Quantitative
Using any of your 5 senses to describe the world around you.
Observation
Inference
Prediction
Logical Theory
Observation or Inference: I think the weather is cold.
Observation
Inference
Which two of these can be observations about a gorilla?
The gorilla wants a bigger banana.
The gorilla has 5 fingers on his right hand.
The gorilla is hungry.
The gorilla has dark brown hair.
The cat looks mad. He must be hangry.
Observation
Inference
