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Experimental Design
Metric Measurement
Data Tables
Graphing
Scientific Root Words
100
What is the name of the variable that changes based on the independent variable. (Hint: it is the one you measure)
Dependent Variable
100
What is the metric base unit for measuring length?
Meters
100
In trial #1, which salt concentration produced the highest transmittance?
6%
100
After 9 days, which sample (A, B, or C) had the highest percentage of mold coverage?
A
100
What does the prefix anti- mean?
Against
200
What is the name of the group that does not receive the independent variable?
Control Group
200
What is the metric base unit for measuring volume?
Liters
200
What is the unit for salt concentration?
% (percent)
200
What is the label for the x-axis?
Days
200
What does the prefix di- mean?
Two; double
300
The amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead. What is the dependent variable?
Amount of pollution produced.
300
What is the name of the device we used in class to measure an object's mass?
Triple-beam balance
300
At which salt concentration was the highest transmittance value recorded?
12%
300
What is the name of the box on the right hand side of the graph?
Key
300
Which scientific root word means green?
Chlor-
400
Lemon trees receiving the most water produced the most lemons. List three possible constant variables.
Location; sunlight; type of tree; time of day watered; etc.
400
Which of these measurements is biggest? 12.8 centimeters 12.8 millimeters 12.8 kilometers 12.8 meters
12.8 kilometers
400
What is the average transmittance for a salt concentration of 12%?
74.94%
400
What is the dependent variable in this experiment, based on the graph?
% covered by mold
400
Think of the word binocular. You already know that bi- means two. What do you predict the suffix -ocular means?
-ocular = something to do with the eye / vision
500
A study was done to find if different tire treads affect the braking distance of a car. What would be an acceptable hypothesis for this experiment?
Example: If a car has certain tire treads, then it will have a shorter braking distance.
500
Describe one way you can measure the volume of a solid object.
Displacement of a liquid.
500
What is the independent variable in this data table?
Salt Concentration
500
After 11 days, what percentage of sample B do you predict will be covered by mold?
~30%
500
What two languages do most scientific root words come from?
Latin & Greek