WorksheetsDesigning Experiments Review
Total questions: 24
Worksheet time: 48mins
Scientific questions should be written in which general format?
How does the Independent Variable affect the Dependent Variable?
How does the Controlled Variable affect the Dependent Variable?
How does the Independent Variable affect the Controlled Variable?
How does the Dependent Variable affect the Independent Variable?
Which is the correct format for a hypothesis?
If DV then IV because background knowledge
Because IV I think DV will occur
I think the IV will affect the DV because background research
If IV then DV because of scientific reasoning.
You are given this question to investigate: How does adding solute to water change the temperature at which the water boils?
What is the dependent variable in this question?
Adding solute to water
Temperature that water boils
Amount of solute in water
Amount of water being boiled
Identify the independent and dependent variable in the following hypothesis:
If the concentration of sugar dissolved in water increases the water will take longer to boil because dissolved solutes slow the energy transfer and increase the boiling point.
Concentration of sugar/time to boil
Time to boil/ concentration of sugar
Boiling point/time to boil
Time to boil/boiling point
Why did Carol use 5 seedlings instead of a single seedling in each group?
To ensure that her investigation is a controlled experiment (or fair test).
To increase the confidence that the results are not by chance.
To show that any difference in the results is due to the color of light.
Because the lab manual said to run at least 5 trials.
The set-ups are left at room temperature for two days. To investigate whether light is necessary for seed germination, which of the set-ups should be compared?
(1) and (3) only
(1) and (4) only
(2) and (3) only
(2) and (4) only
a correlation describes...
a positive relationship between two variables
a negative relationship between two variables
a relationship between two variables
a random event
The variable that responds to the changes in the other variable is the ___ variable.
Independent
Dependent
Constant
Control
A set of conditions that can be used as a baseline
Independent
Dependent
Constant
Control
What type of graph is best used to compare discontinuous data?
Line Graph or Scatter Plot
Pie Chart
Bar Graph
Histogram
What type of graph is best used to represent a correlation between two continuous variables?
Line graph or scatter plot
Pie Chart
Bar Graph
Histogram
What is the independent variable on this graph?
Year
Number of Visitors
Visitors to a Park
none of these
What is the independent variable?
School Year
Expenditure per student
Daily Attendance
Adjusted Dollars
Which of the following best describes the motion of the squirrel between 5 s and 8 s?
The squirrel's speed increased.
The squirrel's speed decreased.
The squirrel's speed did not change.
The squirrel moved backward.
This type of graph is used to _______
Compare discontinuous data
Compare two continuous variables
Show the frequency of a characteristic within a population
Show proportions
Which type of graph would you create for this data table?
Bar Graph
Line Graph or Scatterplot
Pie Chart
Histogram
Which type of graph would you create for this data table?
Bar Graph
Line Graph
Pie Chart
Histogram
Which would go on the y-axis?
Time
Number of Bacteria
Species of bacteria
Growth Rate of Bacteria
What is one of the problems with this graph?
the x-axis does not have equal intervals
San Fransisco is not a real city
you cannot have percents in a line graph
This data set should use a bar graph
According to the graph, is there a correlation between pressure and volume?
yes
no
depends on the situation
When does scientific theory become scientific law?
When enough data is gathered to support the change
When the scientific community agrees that it is correct
When the council for scientific advancement votes to do so
never
An explanation for why something is happening that is supported by a wide array of observations and experimental data
hypothesis
idea
scientific law
scientific theory
The description of an observed phenomenon, describing the parameters within which it occurs
hypothesis
idea
scientific law
scientific theory
