Science Variables
Data Analysis and Graphs
Groups
100
The difference between an independent and dependent variable.
What is the independent variable is what is being tested and changed, while the dependent variable is what is being measured?
100
The difference between bar graphs and line graphs.
What is bar graphs are used for comparisons, while line graphs are used to show change over time?
100
The two types of groups
What is a control and experimental group?
200
The independent and dependent variables in the following scenario:
The effect of different brands of yeast on the height that bread rises (cm).
What is:
IV: Brands of yeast
DV: Height of the bread (cm)
200
The temperature range that could support the growth of all three specie?
A. 40-45 °C
B. 0-5°C
C. 30-35°C
D. 15-20°C
What is "D," 15-20°C?
200
The difference between a control and experimental group.
What is the experimental group receives the treatment, while the control group does not?
300
Alysha wants to test the effect of different materials on the melting rate of ice. She finds the initial mass of four pieces of ice. She then covers three pieces with either tinfoil, plastic wrap, or paper. The fourth piece is left uncovered.
After 30 minutes, Alysha calculate the final mass of each piece of ice to determine which melted the fastest.
The independent and dependent variables in Alysha's experiment.
What is the independent variable is the type of material cover, and the dependent variable is the mass of the ice.
300
The conclusion that is best supported by the data in the table.
A. The resting respiratory rates of the non-runners was lower than that of the runners.
B. The respiratory rates of the runners and non-runners returned to resting rate at the same time.
C. The respiratory rates of the runners returned to the resting rate 3 minutes post-exercise.
What is "C," The respiratory rates of the runners returned to the resting rate 3 minutes post-exercise?
300
A scientist is testing the effects of the active ingredient in a new drug known as Cure-All.
Of the following, this would best serve as the control group in determining the active ingredient's effectiveness.
What is "A," A group of individuals treated with a placebo (inactive substances) drug?
400
Alysha wants to test the effect of different materials on the melting rate of ice. She finds the initial mass of four pieces of ice. She then covers three pieces with either tinfoil, plastic wrap, or paper. The fourth piece is left uncovered.
After 30 minutes, Alysha calculate the final mass of each piece of ice to determine which melted the fastest.
Three (3) controlled variables in this experiment.
What is:
The time that the ice is left in the wrapping (30 mins)?
The scale used to find the mass of each piece of ice?
The mass of each piece of ice?
400
A biology student wanted to determine if there is a relationship between resting heart rate and time spent exercising per week. He gathered information from 12 classmates and constructed the graph below.
A conclusion that the student can draw from this graph.
What is as students increase the amount of hours that they exercise per week, their heart rate (bpm) decreases? Indirectly proportional relationship.
400
A biology class wanted to study the effect of different materials on the melting rate of ice. They placed pieces of ice, each with a mass of 10g, onto trays. Group 1 was covered in plastic, group 2 was covered in paper, group 3 was covered in aluminum, and group 4 remained uncovered.
Each piece of ice was allowed to melt for 15 minutes. Then final mass of the ice, minus the melted water, was recorded at the end of the experiment.
The control group in this experiment.
What is Group 4?
500
The question, independent and dependent variables in an experiment on goldfish in water.
What is:
What is the effect of temperature (degrees Celsius) on the number of breaths that a goldfish takes every 5 mins?
What is the IV is the temperature (degrees Celsius)?
What is the DV is the number of breaths per 5 mins?
500
The month in which you would expect the Organism A population to be the GREATEST.
What is July?
500
Poison ivy is a weed that produces an oil which causes skin rashes. Scientists want to perform an experiment to see if poison ivy grows taller when exposed to more carbon dioxide (CO2).
The treatment for the control group in this experiment.
What is "A": The control group should have plants growing at normal carbon dioxide levels?