Variables
Graphing
Scientific Method
Potpourri
100
The variable that is manipulated or changed before the experiment.
What is the independent variable?
100
The x-axis of a graph.
What is the independent variable?
100
An educated guess or prediction prior to experimenting.
What is a hypothesis?
100
The names of the 8th grade Science teachers.
Who is Ms. Guidice, Ms.Krull, Ms. Simpson, and Ms. Slagus?
200
The responding variable, the variable that is measured.
What is the dependent variable?
200
The y-axis of the graph.
What is the dependent variable?
200
The portion of the scientific method where you list the steps of the experiment.
What are the procedures?
200
The official name of PS71.
What is Rose E. Scala?
300
The variables that are kept constant / same throughout out an experiment.
What are the controlled variables?
300
The total number of titles in a line graph.
What are 3 (x, y and graph title)?
300
A scientist tested the hypothesis that white-tailed deer would eat apples instead of corn. The results were published. Other researchers might question the results if the scientist. CHOOSE ONE (multiple choice)
- observed 4 deer in different locations at various times of the day
- observed a total of 500 deer in 20 different locations at various times of the day
- observed 200 deer in various natural settings, but none in captivity
- observed 300 deer in various locations in captivity, but none in natural settings
What is #1?
- observed 4 deer in different locations at various times of the day
300
Total number of Assistant Principal.
What is 3? Ms. DeLillis, Ms. Mondelli, Ms. Quesada
400
Two groups of students were tested to compare their speed working on math problems. Each group was given the same math problems. One group used calculators and the other group computed without calculators. Identify the independent variable.
What is calculator vs. no calculator?
400
The relationship of the x and y axis.
What is a trend?
400
Craig hypothesized that lettuce seeds would not germinate (begin to grow) unless they were covered with soil. Craig planted 10 lettuce seeds under a layer of soil and scattered 10 lettuce seeds on top of the soil. The data Craig collected is shown in the table below.
Data TableSeed TreatmentNumber of Seeds
Germinated
| Planted under soil | 9 |
| Scattered on top of soil | 8 |
To make the results more reliable, Craig should:
- conclude that darkness is needed for germination
- conclude that light is needed for germination
- use another hypothesis
- repeat the experiment using more seeds (larger sample size)
What is option #4?
- repeat the experiment using more seeds (larger sample size)
400
The total # of middle school classes at PS71.
What is 21? 601-608, 701-707, 801-805
500
Two groups of students were tested to compare their speed working on math problems. Each group was given the same math problems. One group used calculators and the other group computed without calculators. Identify the dependent variable.
What is the speed working on math problems?
500
The graph shows the growth curves for two types of bacteria (A and B) under different pH values.
Which conclusion concerning bacteria A and bacteria B is correct using the data in the graph?
- They could not both live in the same medium.
- The pH at which they grow the best is different.
- Bacteria A grows at a faster rate than bacteria B.
- Bacteria A is larger than bacteria B.
What is option #2?
500
In an experiment, students study how much salt can be dissolved in a cup of water at varying temperatures. Which factor should be held constant / controlled in this experiment?
- the temperature of the water in the cup
- the amount of salt added to the water
- the amount of water in the cup
- time
What is option #3?
- the amount of water in the cup
500
Total # of days in a school year.
What is 180 days?