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Scientific Processing 1
Test Description: Answer the review questions about scientific processing from your odyssey lectures.
Instructions: Answer all questions to get your test result.
1) Which of the following scientific terms has the most evidence and observations?
A
A hypothesis
B
An educated guess
C
A scientific law
D
A theory
2) An educated guess is based on past experience. How does a hypothesis express the educated guess?
A
The hypothesis states the educated guess in the form of an if-then statement
B
The hypothesis mentions the educated guess as an observation
C
The educated guess is not part of the hypothesis
D
The educated guess is not part of the hypothesis
3) What is the relationship between the independent variable and the dependent variable?
A
The dependent variable affects the independent variable.
B
Neither the dependent variable nor the independent variable affect each other.
C
Both the independent variable and the dependent variable affect each other.
D
The independent variable affects the dependent variable.
4) Two similar sunflowers are grown side by side. Both plants receive the same amount of everything, but one plant gets more water.What is the DEPENDENT variable in the experiment?
A
Time
B
Plant growth
C
Water
D
Soil and sunlight
5) What is the minimum number of data points an experiment should gather?
A
one
B
two
C
three
D
four
6) Sequential and ordered steps clearly define the procedure for an experiment. Why are experimental procedures so carefully defined?
A
The steps help mark where an experiment can be resumed the next day.
B
The clearly defined steps allow other scientists to perform the same experiment.
C
Each step of the experiment required recording data.
D
The steps are necessary to create a trend line through the data points.
7) What is the most precise method for recording data points during an experiment?
A
Filling a table with the changed and measured data values.
B
Plotting the data point of an X-Y graph.
C
Creating a pie chart for each observation.
D
Marking the closest point of the trend line of an X-Y graph.
8) An X-Y graph with plots of observations allows sketching a trend line. What does the slope of the trend line represent?
A
the rate of change in accuracy of the data.
B
how much time it will take to perform the experiment
C
the slope of the trend line has no meaning in experiments
D
the ratio of the independent variable to the dependent variable
9) What is a prediction?
A
a conclusion
B
another proposed data point on the trend line but not observed data
C
another hypothesis
D
observed data that does not support the hypothesis
10) Which representation of the observed data is best to show quantities instead of trends?
A
table
B
X-Y graph trend line
C
bar chart
D
X-Y graph plots
*select an answer for all questions
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