WorksheetsISRP
Total questions: 39
Worksheet time: 23mins
This part of the experiment serves as a basis of comparison:
control group
Independent variable
dependent variable
data
A possible explanation to a problem that has not yet been tested. Educated guess.
data
theory
hypothesis
fact
This variable in an experiment is the one being deliberately changed by the scientist.
dependent variable
independent variable
data
control group
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
type of plant
the amount of sunlight
the type of music
the type of liquid
The summary at the end of an experiment that explains the results.
conclusion
hypothesis
procedure
question
A student wants to test the effects of type of exercise on heart rate. What is the dependent variable?
time of day exercise occurs
amount of exercise
heart rate
type of exercise
Observations made during an experiment are called:
data
problems
conclusions
questions
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what are the controlled variables?
type of plant, amount of music, and sunlight
plant growth
water, apple juice, milk
Which is true about a hypothesis?
It may reject or accepts your prediction.
It summarizes the result on the experiment.
It is the final answer to the question.
It is an educated guess or possible answer to the question.
The graph below shows atmospheric carbon dioxide levels since the year 1880.Which of the following conclusions can be drawn from this graph
Atmospheric carbon dioxide levels are responsible for global temperature change.
Atmospheric carbon dioxide levels have been rising at about the same rate for the past century.
Atmospheric carbon dioxide levels have remained the same over the past century.
Atmospheric carbon dioxide levels have been rising at an increasingly higher rate as the past century has progressed.
Which type of data involves numbers that are obtained by counting or measuring?
quantitative
qualitative
Which type of data involves descriptions that cannot be counted or measured?
qualitative
quantitative
The variable that is measured.
Controlled Variable
Dependent Variable
Independent Variable
In a controlled experiment, how many independent variables can be tested at a time?
one
none
two or more
how ever many makes sense.
This part of the experiment serves as a basis of comparison; the group that does not receive the independent variable.
constant
control group
experimental group
hypothesis
During which month did Sam have a weight of 73 Kg?
January
February
May
March
Refers to the level of consistency of an instrument and the degree to which the same results are obtained when the instrument is used repeatedly with the same individuals or group.
Reliability
Validity
Variance
Stabilization
This is an example of...
Reliability but Not Validity
Validity but Not Reliability
Neither Validity or Reliability
Validity and Reliability
Validity is a concept that... (choose the best answer)
Measures the consistency of the measurement taken under the study.
Covers the the full range of the issue set for the study
Measures the accuracy of the concept that it supposes to measure.
A fair test is a __________ experiment.
reliable
valid
accurate
scientific
Independent variable is/are
The 1 variable that is changed.
What is being measured.
Variables that are kept the same.
The two or more variables that are changed.
Dependent variable is/are
The 1 variable that is changed.
The variable that is measured.
The variable that is kept the same.
The two or more variables that are changed
A method is valid if
A list of equipment is provided
Variables are controlled
Variables are not controlled
They are detailed,logical and easy to understand
A method is valid if
it allows you to test the hypothesis.
it allows you to repeat the experiment multiple times.
it allows you room for error.
It allows you to draw a results table with averages.
To ensure results are reliable the experiment should be
Done once
Repeated
Done as exactly the same as the method outlines
Repeated if necessary
A reliable experiment produces results which
are consistent
vary greatly
are different from sample answers
are not consistent
Repetition _______________ the effect of outliers and allows them to be removed.
increases
minimises
equals
justifies
Results collected from repeat trials of an experiment should be
averaged
graphed
added up
subtracted
A faulty thermometer can consistently provide a wrong value therefore providing reliably
Invalid results
Valid results
Accurate results
Weird results
The purpose of an investigation includes
aim
hypothesis
aim and hypothesis
aim and prediction
Repetition in an investigation makes the data
accurate
replicated
science-y
in a graph
This is an example of...
Reliability but Not Validity
Validity but Not Reliability
Neither Validity or Reliability
Validity and Reliability
A thermometer is measuring the body temperature of healthy persons as 38 Degree Celsius in many times. This instrument is considered as ...
reliable
valid
both valid and reliable
not valid
