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Vocabulary
Vocabulary
Vocabulary
Questions
NJ Ask practice
100
an investigation in which you have to go through different trails and identify all variables
What is systematic investigation
100
the number of observations made when gathering data.
What is sample size
100
an idea that can be tested by a scientific investigation
What is hypothesis
100
1. two things Juanita must do to know the distances of the shortest and longest flights. 2. why do you think Juanita decided that this was not the best way to figure out how to improve her glider.
What is 1. she must record her measurements of the experiment. 2. she should test one independent variable at a time.
100
how does the scientific community confirm that a scientist work is valid
What is other scientist carry out the same experiment to see if they get the same result.
200
the variable that changes
What is independent variable
200
the degree of conformity of a measure to a standard or a true value
What is accuracy
200
having the ability to get similar results from multiple trails
What is reproducible
200
1. if you were her which of the three variables would you test first. 2. suggest how she can keep factors such as wind speed and direction constant in her trials.
What is 1. I would test lowering the wait first because the lighter it is the farther it will go 2. she should conduct her trails in the gym where wind remains constant
200
Jack hypothesis that Robins prefer large bird houses to small ones. He built four bird houses of different sizes. What was the independent variable.
What is the size of the bird house.
300
the variable that may or may not change
What is dependent variable
300
decision on investigation and evidence
What is conclusion
300
she already has a control group, what is it
What is the first ten flights.
300
a team of researchers claimed that it had made a new element. Two other teams repeated the experiment but could not reproduce the results. What do these events say about the process of scientific inquiry.
What is experimental results must be reproducible to be accepted as valid
400
factors that should be kept the same
What is controlled variable
400
a controlled variable in an experiment that is kept the same throughout the investigation
What is constant
400
a question used to focus the purpose of a scientific investigation and the procedures used to complete it
What is research question
400
what is Juanita's independent and dependent variables.
What is Independent: 25 gram paper clip Dependent: Distance the glider travels.
400
Louis wanted to know whether a new brand of shoe could make a basketball player jump higher. He found 18 players who started using the shoes this season and measured how high each player could jump. What error did the Lewis make in his experiment.
What is there was no control group
500
makes a change in just one independent variable at a time to see how the change effects the dependent variable. Many variables are at work when conducting experiments it's hard to name them all
What is fair test
500
a set of observations made in an experiment, in which the independent variables are not changed, to be sure that the dependent variable remains the same also
What is control group
500
an investigation in which all variables are identified and recorded so that the investigation can be repeated
What is systematic investigation
500
Juanita's friend Charelle says that Juanita is working to hard. Charelle says that each time Juanita moves the clip, she should throw the glider only once. Will this method produce a sufficient sample size?
What is more trials are necessary for Juanita to determine the best place to and weight to the glider
500
State Paco's hypothesis. Then his independent, dependent variable, and the constant.
What is if a new baseball has more bounce the the ball is going farther, leading to more homeruns. The independent variable was the new baseball. The dependent variable is the distance the ball travels and the homeruns. The constant was the bat used, the power of the hit, and the bases, field and grass.