Variables, Magnification, Graphs, Percentage Final Review

The independent variable in this graph is

• Frequency

• Grading scale

• None

Select the graph you will make to plot the data shown in the picture

• Bar graph

• Histogram

• Pie chart

• Line Graph

• All of them

These are the results of a student's investigation into the effect of different types of light on plant growth. Select the graph you will make to plot the data shown in the picture

• Bar graph

• Histogram

• Pie chart

• Line Graph

• All of them

You will make a graph to plot the data shown in the picture. Which variable will you place on the x-axis?

• Plant Growth

• Type of light

• None

• Both

To calculate the magnification of the bacteria in the picture which calculation will you do? The equation you will use is Actual size = Drawing size / Magnification

• Drawing size multiply by actual size

• Drawing size divide by actual size

• Actual size multiple by magnification

• Drawing size divide by actual size

Scientific Question: How the type of gasoline used in a car affect how fast the car can drive?. The independent is: (Independent variable is change/tested by scientist)

• Type of gasoline

• which car the gas is put into

• how fast the car can drive

• how much gas is put into the car

Scientific Question: Which design of paper airplane flies farthest?. The dependent variable is: (Dependent variable is measure u observe by scientist) 

• the paper used to make the airplane

• the design of paper airplane

• the distance of each airplane's flight

• how hard the plane is thrown

If you were testing the time it took for objects of different sizes to reach the ground after being dropped from 30 feet in the air, which of these would be a CONTROL VARIABLE?

• The time it takes for each object to hit the ground.

• The size of each object.

• The type of object you use.

• The height you drop the object from

Snowfall for December was 5 cm, but in January it was 20 cm. The percentage of change from December to January is _____. The equation is (Final - Initial) / Initial X 100.

• 20%

• 500%

• 400%

• 300%

• 30%

Snowfall for December was 5 cm, but in January it was 20 cm. The percentage of change from December to January is _____. The equation is (Final - Initial) / Initial X 100.

• 20%

• 500%

• 400%

• 300%

• 30%