WorksheetsU0 Practice quiz
Total questions: 50
Worksheet time: 42mins
A custodian notices some dirty tables and wants to know which cleaner is the best to use. He tests three different cleaners and looks at how well they clean compared to tap water. What is the independent variable?
type of cleaner
tap water
cleanliness of table
time spent cleaning
An experiment is being done to determine how light affects the growth of small zinnia plants. One plant is placed in full sunlight, the second in a shaded area, the third in an unlit closet. What is the independent variable in the experiment?
the amount of light
plant in the closet
growth of the plants
the amount of water
Steve wanted to see if different types of fertilizer influence sunflower growth. What is the dependent variable?
type of fertilizer
sunflower grown without fertilizer
growth of sunflowers
color of sunflowers
Independent Variable
"I change"
Compare/Typical Condition
Stays the same
The Effect/Result
A custodian notices some dirty tables and wants to know which cleaner is the best to use. He tests three different cleaners and looks at how well they clean compared to tap water. What is the control group?
type of cleaner
tap water
cleanliness of tables
time spent cleaning
An experiment is being done to determine how light affects the growth of small zinnia plants. One plant is placed in full sunlight, the second in a shaded area, the third in an unlit closet. What is a controlled variable in this experiment?
the amount of light
the plant in the closet
the type of plants
the growth of the plants
Steve wanted to see if different types of fertilizer influence sunflower growth. What is the control group?
type of fertilizer
sunflower grown without fertilizer
Hypothesis: If plants are watered more than normal, then growth height will increase. What is the independent variable?
the amount of water
a plant receiving the normal amount of water
the growth of the plants
pH of water
Hypothesis: If plants are watered more than normal, then growth height will increase. What is the dependent variable?
the amount of water
a plant receiving the normal amount of water
growth of plants
type of plants
The "normal", "typical" or whatever is NOT receiving the tested variable
Independent Variable
Constant
Controlled Variable
Dependent Variable
Students are investigating how the height of a ramp impacts the speed of a toy car. They will make a ramp 30 cm high, 60 cm high, and 90 cm high. They will measure the speed of the car. Choose the color of the data table that will give the best results.
Red
Purple
Blue/Cyan
None
Why is it important for scientists to do several trials when they collect their data?
One trial is enough
More trials mean the results are more accurate
So they can make up more data
Why is doing the scientific process important? (Select the best two)
It cannot be trusted
It is long and only done by a few people
It helps us solve real-world problems.
It gives us accurate data to help us make good decisions
"Rhinos have horns"
Is this a claim, evidence or reasoning?
Claim
Evidence
Reasoning
Which statement is strong evidence?
My family has a computer at home.
My son loves Star Wars.
In a recent study, 78% of students like community service.
I believe that the steelers are the best football team in the NFL
Select the science term that is not like the others
Observation
Results
Analysis
Objective
Select the science term that is not like the others
Observation
Infrence
Analysis
Subjective
Are students allowed to use their cell phones during class?
Only if Ms. Cullen likes them.
No, it's a school/district/state rule
Yeah
Are students allowed to revise and resubmit work for a higher score?
Yes, as long as it's open on Canvas.
Yes, until the end of the year.
No, so always try to get it perfect the first time.
No, just do CK12s.
How many times are students allowed to take each quiz?
Once
Twice
Unlimited
Zero times
Select the true statement about quiz retakes.
There are no retakes
You keep the best score
The average score is recorded as your grade
The questions will be the same on the retake
What was Sarah Nelmes' contribution?
She came up with a cowpox vaccine
She provided evidence for a smallpox vaccine
She was the first person to be variolated
She was the first person to be vaccinated
What was James Phipps' contribution?
He vaccinated the first kid against cowpox
He was variolated with a long tube
He was inoculated with cowpox, and protected from smallpox
He died of smallpox, inspiring a vaccine
The Buddhist nun who had people snort the ground up scabs of smallpox patients was practicing:
Her religious liberties
Vaccination
Variolation
Vibrations
Select the true statement about whole cell vaccines
They offer more complete protection, but more dangerous side effects
They cause mild side effects, but are slightly less protective
Health Secretary RFK Jr. hates them
They were eradicated
Why is it called "Vaccination?"
Because it makes the virus take a vacation
It comes from the Latin word for "cow," and the first vaccination was made with cowpox
The first dose was given in the Vatican
It is a new version of the word "Variolation."
This refers to making sense of things related to the scientific process, such as conclusions based on the results of an experiment.
Scientific Reasoning
Scientific Law
Scientific Methods
Scientific Investigations
The human process used to make sense of things is known as ________________
Reasoning
Evidence
Claim
Hypothesis
Determining a general statement that is likely to be true based on several facts is:
Induction
Deduction
Inference
Which step in the scientific process comes before the others listed?
Ask a question
Form a hypothesis
Background Research
Test the hypothesis
Which step in the scientific process comes after all the other steps listed?
Test the hypothesis
Background Research
Ask a question
Communicate results
Select the true statement about the scientific process
It is a linear method with well-defined steps
It is common to change and re-test your hypothesis.
Only trained scientists can formulate and test questions
If your hypothesis is wrong, you have failed.
A suggested explanation based on evidence that can be tested by observation or experimentation.
Hypothesis
Experiment
Inference
Theory
Developing new knowledge based upon old knowledge.
Hypothesis
Experiment
Inference
Theory
A test that is used to rule out a hypothesis or validate something already known.
Hypothesis
Experiment
Inference
Theory
Select the true statement about bacteria
All bacteria are harmful to humans
Bacteria cells grow bigger with more food
Bacteria reproduce by rapidly doubling their cells
Bacteria takes at least 6 seconds to move onto food
Select a reasonable inference based on these results
Bacteria can transfer onto food that's dropped on the ground
In most cases, it's safe to eat food off the ground at PLHS
The 5-second rule is valid
Almost half of the campus ground is clean
Select a reasonable inference based on these results.
Bacteria can stick to food even after only 5 seconds
Half of the tables on campus are safe to eat off of
If you drop food on the table, wait at least 50 seconds before picking it up
Select the true statement about these petri dishes
There was more bacteria transferred from the table than from the ground.
There was more bacteria transferred from the ground than from the table.
The 5-second rule only applies for some surfaces.
The petri dishes are not labeled properly
Select the correct statement based on the results shown.
Bigger bacteria were on the ground
Smaller bacteria were on the table
The 5-second rule is true for both surfaces
These petri dishes are mis-labeled.
Select the correct format for a scientific quesiton.
Does the independent variable affect the dependent variable?
Does the dependent variable affect the independent variable?
What will happen if I change the dependent variable?
What can I do to increase the independent variable?
An explanation for why the results occurred, or what they mean.
Analysis
Observation
Conclusion
Hypothesis
(U0L3) All statements about Acarus crossii are true except...
It is the scientific name so it is italicized
They turned out to be common cheese mites
It is a species of bug named after Andrew Crosse
crossii should be capitalized
