Worksheetsscientific method - prapti dabhi
Total questions: 25
Worksheet time: 14mins
What are the different types of variable groups in an experiment?
Independent and dependent
Hypothesis and constant
Groups A, B, and C
Independent, dependent and control
The dependent variable is identified as...
an educated guess
what is being observed or measured
factor that is being manipulated or changed
the group not receiving experimental treatment
The independent variable is identified as...
factor that is being manipulated or changed
group that does not receive the experimental treatment
a hypothesis supported by data
group being observed or measured
Which two ways are considered to be efficient in data collection?
Hypotheses and catalysts
Mean and median
Independent and dependent variables
Designed experiments and surveys
What does IDCGOMARES stand for?
IV, DV, cats, gophers, octopus, muskrats, anteater, rabbit, eagle, snake
IV, DV, controls, groups, organism, measure, average, repeat, ethics, safety
IV, DV, constants, group names, odd numbers, mass, average, recycle, even numbers, sum
IV, DV, controls, groups, organism, method, average, resuscitate, ethics, summary
How much space should data take up on a graph?
40%
10%
75%
25%
What should the title of your graph be?
Use a random name generator
"My graph"
Come up with one based on the topic
The exact title on the given table
A scientific theory can be described as...
a possible explanation that can be tested in an experiment
explanations supported by evidence
what you think will happen
a statement of what happens
A scientific law can be described as...
explanations supported by evidence
what you think will happen
possible explanation that can be tested in an experiment
a statement of what happens
What is the most effective way to identify an anomaly on a graph?
Count the distance for each individual point
The point all the way to the right
Draw a line of best fit
The point all the way to the left
All of the choices are rules for drawing a line of best fit EXCEPT...
Try to make plots equidistant from line
Try to place an equal number of plots on both sides
Freehand your line without a ruler
Not mandatory to pass through all plots
The confounding variable can be identified as...
the variable in a field experiment that you cannot control
the variable that requires specific conditions
the variable being changed or manipulated
the variable being measured in an experiment
"Qualitative is ___ data, while quantitative is ___ data."
numerical; descriptive
real; imaginary
physical; hypothetical
descriptive; numerical
All of these choices are rules for improving experiments EXCEPT...
Use more precise equipment
Add more data points
Use the least amount of ways to measure
Repeat experiments
Which statement about drawing conclusions is FALSE?
The purpose of a conclusion is to have a detailed, scientific explanation of your results
If a hypothesis is refuted, another hypothesis is not necessary.
A supportive conclusion means the hypothesis equals the results.
A refuting conclusion means the hypothesis does not equal the results.
Why should experiments be repeated more than twice?
To consistently make mistakes
To perform the experiment differently every time
Because third time's a charm
Reliability and to identify anomalies
Which statement describes a NEGATIVE correlation on a graph?
As one increases, the other decreases
As one decreases, the other decreases
As one increases the other increases
As one increases, the other stays the same
What formula is used to calculate the rate of change?
time/change
final/initial
change/time
total/number of groups
All of these choices are rules for determining proper scale, EXCEPT...
Number of boxes ÷ groups or categories
The origin of the graph doesn't have to start at (0,0)
Use lowest data point to determine scale
If uneven, round down
Which statement best describes a discontinuous variable?
A variable that can take any value
A variable that is being measured in an experiment
A variable that cannot take any value and has specific conditions
A variable that remains constant in an experiment
Which statement best describes a RANDOM experimental error?
Errors that occur with no cause
Errors that affect everything in your experiment
Errors that happen because you want them to
Errors that happen because of other variables
Which of the following is an example of qualitative data?
The jellyfish were seen at a depth of 50 meters
The divers were underwater for about 2 minutes
About 4 gallons of sea water were collected at the start of the day
The sea anemone population had a bioluminescent feature
You want to compare brands of paper towels to see which one holds more liquid. What factor in this problem is considered the independent variable?
The type of liquid being absorbed
The brand of paper towel
The time it takes for the liquid to be absorbed
The amount of liquid absorbed
You want to compare brands of paper towels to see which one holds more liquid. What factor in this problem is considered the dependent variable?
The amount of liquid absorbed
The type of liquid being absorbed
The time it takes for the liquid to be absorbed
The brand of paper towel
What is an example of including ethics when designing an experiment?
"Make sure to follow all steps in the order they are placed."
"Keep your work area clean as you progress through the experiment."
"Make sure not to keep the lamps too close to the organisms, as it might burn them."
"Pour the liquid into the biggest beaker."
