definitions
definitions
definitions
questions
nj ask practice
100
the degree of conformity of a measure to a standard or a true value
What is accuracy?
100
the factor in an expiriment that changes as a result of a change in an independent varible.
What is a dependent variable?
100
a question used to focus the purpose of a scientific investigation in the procedures used to complete it.
What is research question?
100
why do you think juanita decided that this was not the best way to figure out how to improve her glider.
What is she should test one independent variable at a time?
100
what parameters were held constant in annessas experiment?
What is liver mass, enzyme amount, and reaction duration?
200
a decision based on an investigation and edvidence.
What is conclusion?
200
an experiment in which one independent variable is tested by keeping all other independent variables the snow.
What is fair test?
200
the number of observations or data.
What is sample size?
200
if you juanita, which of the three variables who you test first? why?
What is I would test shortening the wingspan first for more areodynamics and more surface area for more lift.
200
how does the scientific community confirm that a scientists work is valid?
What is other scientists carry out the same experiment to see if they get the same result.
300
a controlled variable in an expiriment that is kept the same for trial to trial.
What is a constant?
300
an idea that can be tested by a scientific investigation.
What is a hypothesis?
300
an investigation in which all variables are identified and recorded so that the investigation can be repeated.
What is a systematic investigation?
300
suggest how juanita can keep factors such as wind speed and direction constant in her trials.
What is she should conduct her trials in a gym where wind remains constant.
300
In which order should these steps occur?
What is 2-1-4-3?
400
a set of observations made in an expiriment, in which the independent variables are not changed, to be sure that the depndent variable remains the same also.
What is a control group?
400
a variable that is isolated for the study in an experiment and that the experimenter manipulates.
What is an independent variable?
400
a factor that changes an experiment.
What is a variable?
400
why might it be difficult to test just one independent variable at a time? use the example of juanita and her glider in your answer.
What is it might be difficult to test more than one independent variable at a time because they change.
400
what was the independent variable in Jacks study?
What is the size of the birdhouse?
500
a variable that is kept the same from trial to trial
What is a controlled varible?
500
having the ability to get similar results from multiple trials.
What is reproductible?
500
name two things juanita must do to know the distances of the shortest and longest flights.
What is in order for juanita to know the distance of the shortest and longest flights, she must measure the distance of each flight and record each distance she measures.
500
juanita already has a control group. what is it?
What is the first ten test flights?
500
what do these events say about the process of scientific inquiry?
What is experimental results must be reproducable to be accepted as valid?
M
e
n
u